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Patent Assignment Assignor Details
NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Assignor Name : HASENZAHL, STEFFEN
Total Assignments: 47
Assignment: 1
Reel/Frame:008935/0316   Pages: 3
Recorded: 11/24/1997
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HASENZAHL, STEFFEN
Exec Dt:
05/16/1997
2
MANGOLD, HELMUT
Exec Dt:
05/26/1997
3
ROLAND, ECKEHART
Exec Dt:
06/18/1997
4
SCHOLZ, MARIO
Exec Dt:
05/26/1997
5
THIELE, GEORG
Exec Dt:
05/23/1997
Assignee
1
DEGUSSA AKTIENGESELLSCHAFT
WEISSFRAUENSTRASSE 9
60311 FRANKFURT AM MAIN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5919430
NONE
08878509
Correspondence name and address
BEVERIDGE DEGRANDI WEILACHER & YOUNG LLP
ROBERT G. WEILACHER
1850 M STREET, N.W.
SUITE 800
WASHINGTON, DC 20036
Assignment: 2
Reel/Frame:009357/0108   Pages: 2
Recorded: 08/04/1998
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HASENZAHL, STEFFEN
Exec Dt:
10/03/1997
2
THIELE, GEORG
Exec Dt:
11/05/1997
Assignee
1
DEGUSSA AKTIENGESELLSCHAFT
WEISSFRAUENSTRASSE 9
D-60311 FRANKFURT, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6054112
NONE
08957442
Correspondence name and address
PILLSBURY MADISON & SUTRO LLP
KEVIN E. JOYCE
1100 NEW YORK AVENUE, N.W.
NINTH FLOOR, EAST TOWER
WASHINGTON, D.C. 20005-3918
Assignment: 3
Reel/Frame:009488/0587   Pages: 3
Recorded: 09/11/1998
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HASENZAHL, STEFFEN
Exec Dt:
08/17/1998
2
MARKOWZ, GEORG
Exec Dt:
07/13/1998
3
VIANDT, MATHIAS
Exec Dt:
08/26/1998
4
ROLAND, ECKEHART
Exec Dt:
07/13/1998
5
THIELE, GEORG
Exec Dt:
07/09/1998
6
GOOR, GUSTAAF
Exec Dt:
07/27/1998
7
MOLLER, ALEXANDER
Exec Dt:
07/10/1998
Assignee
1
DEGUSSA AKTIENGESELLSCHAFT
WEISSFRAUENSTRASSE 9
DE-60311, FRANKFURT, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6106803
NONE
09121309
Correspondence name and address
PILLSBURY MADISON & SUTRY LLP
RUTH N. MORDUCH
1100 NEW YORK AVENUE, N.W.
NINTH FLOOR, EAST TOWER
WASHINGTON, D.C. 20005-3918
Assignment: 4
Reel/Frame:010155/0702   Pages: 4
Recorded: 07/06/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HASENZAHL, STEFFEN
Exec Dt:
03/15/1999
2
MANGOLD, HELMUT
Exec Dt:
03/22/1999
3
ROLAND, ECKEHART
Exec Dt:
04/20/1999
4
SCHOLZ, MARIO
Exec Dt:
03/25/1999
5
THIELE, GEORG
Exec Dt:
03/30/1999
Assignee
1
DEGUSSA-HULS AKTIENGESELLSCHAFT
WEISSFRAUENSTRASSE 9
60311 FRANKFURT AM MAIN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20010001656
09293949
Correspondence name and address
SMITH, GAMBRELL & RUSSELL, LLP
ROBERT G. WEILACHER
SUITE 800
1850 M STREET, N.W.
WASHINGTON, D.C. 20036
Assignment: 5
Reel/Frame:010110/0941   Pages: 2
Recorded: 07/16/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SHI, NONGYUAN
Exec Dt:
04/28/1999
2
SCHOLZ, MARIO
Exec Dt:
05/17/1999
3
HASENZAHL, STEFFEN
Exec Dt:
05/11/1999
4
WEIGEL, HORST
Exec Dt:
04/28/1999
5
DRAPAL, BERND
Exec Dt:
04/28/1999
6
MCINTOSH, RALPH
Exec Dt:
05/19/1999
7
HASSELBACH, HANS J.
Exec Dt:
05/05/1999
8
HUTHMACHER, KLAUS
Exec Dt:
04/30/1999
Assignee
1
DEGUSSA-HULS AG
WEISSFRAUENSTRASSE 9
D-60311 FRANKFURT AM MAIN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6103924
NONE
09295359
Correspondence name and address
PILLSBURY MADISON & SUTRO LLP
RUTH N. MORDUCH
1100 NEW YORK AVENUE, N.W.
NINTH FLOOR, EAST TOWER
WASHINGTON, D.C. 20005-3918
Assignment: 6
Reel/Frame:011201/0161   Pages: 4
Recorded: 10/02/2000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
FINKELDEI, CASPAR-HEINRICH
Exec Dt:
05/15/2000
2
PREUSS, ANDREA
Exec Dt:
05/15/2000
3
WOYCIECHOWSKI, MATTHIAS
Exec Dt:
05/18/2000
4
HASENZAHL, STEFFEN
Exec Dt:
05/15/2000
Assignee
1
DEGUSSA-HULS AKTIENGESELLSCHAFT
WEISSFRAUENSTRASSE 9
60311 FRANKFURT AM MAIN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6325946
NONE
09587364
Correspondence name and address
SMITH, GAMBRELL & RUSSELL, LLP
BEVERIDGE DEGRANDI WEILACHER & YOUNG
ROBERT G. WEILACHER
SUITE 800, 1850 M STREET N.W.
WASHINGTON, D.C. 20036
Assignment: 7
Reel/Frame:011708/0157   Pages: 3
Recorded: 04/12/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHUTTE, RUDIGER
Exec Dt:
02/16/2001
2
MARKOWZ, GEORG
Exec Dt:
02/16/2001
3
ESSER, PETER
Exec Dt:
02/28/2001
4
BALDUF, TORSTEN
Exec Dt:
03/01/2001
5
THIELE, GEORG
Exec Dt:
02/19/2001
6
HASENZAHL, STEFFEN
Exec Dt:
02/21/2001
Assignee
1
DEGUSSA-HUIS AKTIENGESELLSCHAFT
D-60287 FRANKFURT AM MAIN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6323349
US20010021784
09764140
Correspondence name and address
PILLSBURY WINTHROP LLP
MICHAEL A. SANZO
INTELLECTUAL PROPERTY GROUP
1100 NEW YORK AVENUE, NW, NINTH FLOOR
WASHINGTON, D.C. 20005-3918
Assignment: 8
Reel/Frame:012200/0729   Pages: 3
Recorded: 09/26/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
THIELE, GEROG FRIEDRICH
Exec Dt:
08/29/2001
2
HASENZAHL, STEFFEN
Exec Dt:
08/29/2001
3
SCHIFFER, THOMAS
Exec Dt:
08/29/2001
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
D-40474 DUESSELDORF,, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6566555
US20020058840
09962193
Correspondence name and address
OBLON SPIVAK ET AL
NORMAN F. OBLON
FOURTH FLOOR
1755 JEFFERSON DAVIS HIGHWAY
ARLINGTON, VA 22202
Assignment: 9
Reel/Frame:012460/0630   Pages: 4
Recorded: 01/10/2002
Conveyance: CORRECTIVE ASSIGNMENT TO CORRECT ASSIGNOR NAME, PREVIOUSLY RECORDED AT REEL 012200, FRAME 0729.
Assignors
1
THIELE, GEORG FRIEDRICH
Exec Dt:
08/29/2001
2
HASENZAHL, STEFFEN
Exec Dt:
08/29/2001
3
SCHIFFER, THOMAS
Exec Dt:
08/29/2001
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
D-40474 DUESSELDORF, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6566555
US20020058840
09962193
Correspondence name and address
OBLON, SPIVAK, MCCLELLAND, ET AL.
NORMAN F. OBLON
1755 JEFFERSON DAVIS HWY., 4TH FLOOR
ARLINGTON, VA 22202
Assignment: 10
Reel/Frame:012356/0897   Pages: 2
Recorded: 12/06/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HEMME, INA
Exec Dt:
11/22/2001
2
HABERMANN, HERBERT
Exec Dt:
11/22/2001
3
HASENZAHL, STEFFEN
Exec Dt:
11/22/2001
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
D-40474 DUSSELDORF, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6534068
US20020061285
09957651
Correspondence name and address
PILLSBURY WINTHROP LLP
MICHAEL A. SANZO
INTELLECTUAL PROPERTY GROUP
1600 TYSONS BOULEVARD
MCLEAN, VA 22102
Assignment: 11
Reel/Frame:013579/0278   Pages: 2
Recorded: 12/09/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HEMME, INA
Exec Dt:
11/22/2001
2
HABERMANN, HERBERT
Exec Dt:
11/22/2001
3
HASENZAHL, STEFFEN
Exec Dt:
11/22/2001
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
D-40474 DUSSELDORF, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6773697
US20030124076
10314216
Correspondence name and address
PILLSBURY WINTHROP LLP
RICHARD A. STEINBERG
INTELLECTUAL PROPERTY GROUP
1600 TYSONS BOULEVARD
MCLEAN, VA 22102
Assignment: 12
Reel/Frame:013137/0364   Pages: 3
Recorded: 07/31/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HASENZAHL, STEFFEN
Exec Dt:
07/09/2002
2
DRECHSLER, MARGARETE
Exec Dt:
07/08/2002
3
HIRSCHHAEUSER, MICHAEL
Exec Dt:
07/15/2002
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1,
D-40474 DUESSELDORF, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20020197311
10157181
Correspondence name and address
OBLON, SPIVAK, MCCLELLAND ET AL.
THOMAS M. CUNNINGHAM
1755 JEFFERSON DAVIS HWY., FOURTH FLOOR
ARLINGTON, VIRGINIA 22202
Assignment: 13
Reel/Frame:013416/0115   Pages: 3
Recorded: 08/29/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
HASENZAHL, STEFFEN
Exec Dt:
08/15/2002
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
40474 DUSSELDORF, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6896859
US20030035771
10220454
Correspondence name and address
SMITH, GAMBRELL & RUSSELL
ROBERT G. WEILACHER
1850 M STREET, N.W.
SUITE 800
WASHINGTON, DC 20036
Assignment: 14
Reel/Frame:013437/0733   Pages: 3
Recorded: 09/03/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HASENZAHL, STEFFEN
Exec Dt:
08/15/2002
2
HEYNE, KLAUS
Exec Dt:
08/15/2002
3
KNEITEL, DIETER
Exec Dt:
08/17/2002
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
DUSSELDORF, GERMANY DE-40474
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6841144
US20030103894
10220577
Correspondence name and address
SMITH, GAMBRELL & RUSSELL, LLP
ROBERT G. WEILACHER
SUITE 3100, PROMENADE II
1230 PEACHTREE STREET, NE
ATLANTA, GA 30309-3592
Assignment: 15
Reel/Frame:013377/0480   Pages: 3
Recorded: 10/09/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHUMACHER, KAI
Exec Dt:
08/12/2002
2
MANGOLD, HELMUT
Exec Dt:
09/05/2002
3
HASENZAHL, STEFFEN
Exec Dt:
09/03/2002
4
ALFF, HARALD
Exec Dt:
08/12/2002
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1, DE-40474
DUESSELDORF, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6773814
US20030104198
10212741
Correspondence name and address
OBLON SPIVAK ET AL
1755 J. DAVIS HWY
4TH FL.
ARLINGTON VA 22202
Assignment: 16
Reel/Frame:013756/0987   Pages: 3
Recorded: 10/10/2002
Conveyance: CORECTIVE ASSIGNMENT, PREVIOUSLY RECORDED AT REEL 013377, FRAME 0480.
Assignors
1
SCHUMACHER, KAI
Exec Dt:
08/12/2002
2
MANGOLD, HELMUT
Exec Dt:
09/05/2002
3
HASENZAHL, STEFFEN
Exec Dt:
09/03/2002
4
ALFF, HARALD
Exec Dt:
08/12/2002
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
DE-40474, DUESSELDORF, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6773814
US20030104198
10212741
Correspondence name and address
OBLON, SPIVAK, MCCLELLAND, MAIER & NEUST
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 17
Reel/Frame:013606/0654   Pages: 3
Recorded: 10/15/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HASENZAHL, STEFFEN
Exec Dt:
09/16/2002
2
JANTKE, RALF
Exec Dt:
09/23/2002
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
DUSSELDORF, GERMAN DEMOCRATIC REPUBLIC DE-40474
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6849570
US20030078160
10204305
Correspondence name and address
SMITH, GAMBRELL & RUSSELL
ROBERT G. WEILACHER
1230 PEACHTREE STREET, N.E.
SUITE 3100, PROMENDAE II
ATLANTA, GA 30309-3592
Assignment: 18
Reel/Frame:013839/0693   Pages: 3
Recorded: 10/15/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HASENZAHL, STEFFEN
Exec Dt:
09/16/2002
2
JANTKE, RALF
Exec Dt:
09/23/2002
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
DE-40474 DUSSELDORF, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8449812
US20030130116
10204306
Correspondence name and address
SMITH, GAMBRELL & RUSSELL, LLP
ROBERT G. WEILACHER, ESQ.
SUITE 3100, PROMENADE II
1230 PEACHTREE ST., N.E.
ATLANTA, GA 30309-3592
Assignment: 19
Reel/Frame:013686/0811   Pages: 3
Recorded: 01/22/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HASENZAHL, STEFFEN
Exec Dt:
12/03/2002
2
MEYER, JURGEN
Exec Dt:
12/03/2002
3
HEYM, JURGEN
Exec Dt:
12/06/2002
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 6
D-40474 DUSSELDORF, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7815936
US20040022844
10281223
Correspondence name and address
VENABLE
THOMAS G. WISEMAN
PO BOX 34385
WASHINGTON, DC 20043-9998
Assignment: 20
Reel/Frame:013706/0303   Pages: 2
Recorded: 01/27/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HASENZAHL, STEFFEN
Exec Dt:
12/03/2002
2
MEYER, JURGEN
Exec Dt:
12/03/2002
3
RIEDEMANN, HEIKE
Exec Dt:
12/03/2002
4
NEUGEGAUER, PETER
Exec Dt:
12/04/2002
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 6
D-40474 DUSSELDORF, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20030108580
10282124
Correspondence name and address
VENABLE
THOMAS G. WISEMAN
P.O. BOX 34385
WASHINGTON, D.C. 20043-9998
Assignment: 21
Reel/Frame:014076/0331   Pages: 4
Recorded: 05/16/2003
Conveyance: CORRECTED RECORDATION FORM COVER SHEET TO CORRECT 3RD ASSIGNOR'S NAME AND THE ASSIGNEE'S ADDRESS, PREVIOUSLY RECORDED AT REEL/FRAME 013610/0241 (ASSIGNMENT OF ASSIGNOR'S INTEREST)
Assignors
1
MOERTERS, MARTIN
Exec Dt:
12/02/2002
2
HEMME, INA
Exec Dt:
12/12/2002
3
HASENZAHL, STEFFEN
Exec Dt:
12/04/2002
4
DIENER, UWE
Exec Dt:
12/04/2002
5
HABERMANN, HERBERT
Exec Dt:
12/04/2002
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
DUESSELDORF, GERMANY D-40474
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7083769
US20030129153
10326554
Correspondence name and address
OBLON, SPIVAK, MCCLELLAND, MAIER & NEUST
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 22
Reel/Frame:014153/0728   Pages: 5
Recorded: 06/06/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BATZ-SOHN, CHRISTOPH
Exec Dt:
06/03/2003
2
BRANDT, PETRA
Exec Dt:
05/19/2003
3
DIETZ, THOMAS
Exec Dt:
05/28/2003
4
HASENZAHL, STEFFEN
Exec Dt:
06/04/2003
5
JENNI, KLAUS
Exec Dt:
05/19/2003
6
LEHMANN, KATHRIN
Exec Dt:
05/19/2003
7
MATHIAK, RALF
Exec Dt:
05/19/2003
8
RUTTGERODT, ANGELA
Exec Dt:
05/19/2003
Assignees
1
GOLDSCHMIDT AG
GOLDSCHMIDSTRASSE 100
ESSEN, GERMANY D-45127
2
DEGUSSA AG
BENNIGSENPLATZ 1
DUSSELDORF, GERMANY D-40474
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20030228271
10456277
Correspondence name and address
SCULLY, SCOTT, MURPHY & PRESSER
FRANK S. DIGIGLIO
400 GARDEN CITY PLAZA
GARDEN CITY, NY 11530
Assignment: 23
Reel/Frame:014153/0800   Pages: 5
Recorded: 06/06/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BATZ-SOHN, CHRISTOPH
Exec Dt:
06/03/2003
2
BRANDT, PETRA
Exec Dt:
05/19/2003
3
DIETZ, THOMAS
Exec Dt:
05/28/2003
4
HASENZAHL, STEFFEN
Exec Dt:
06/04/2003
5
JENNI, KLAUS
Exec Dt:
05/19/2003
6
LEHMANN, KATHRIN
Exec Dt:
05/19/2003
7
MATHIAK, RALF
Exec Dt:
05/19/2003
8
RUTTGERODT, ANGELA
Exec Dt:
05/19/2003
Assignees
1
GOLDSCHMIDT AG
GOLDSCHMIDTSTRASSE 100
ESSEN, GERMANY D-45127
2
DEGUSSA AG
BENNIGSENPLATZ 1
DUSSELDORF, GERMANY D40474
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7399487
US20030229172
10456276
Correspondence name and address
SCULLY, SCOTT, MURPHY & PRESSER
FRANK S. DIGIGLIO
400 GARDEN CITY PLAZA
GARDEN CITY, NY 11530
Assignment: 24
Reel/Frame:014625/0186   Pages: 3
Recorded: 10/23/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KUEHNLE, ADOLF
Exec Dt:
08/15/2003
2
DUDA, MARK
Exec Dt:
09/19/2003
3
SEELBACH, KARSTEN
Exec Dt:
08/10/2003
4
TANGER, UWE
Exec Dt:
09/06/2003
5
HASENZAHL, STEFFEN
Exec Dt:
08/21/2003
6
JOST, CARSTEN
Exec Dt:
08/15/2003
7
KLEMM, ELIAS
Exec Dt:
08/26/2003
8
REITZMANN, ANDREAS
Exec Dt:
09/25/2003
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
DUESSELDORF, GERMANY 40474
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20040063568
10399781
Correspondence name and address
OBLON, SPIVAK, MCCLELLAND, ET AL.
NORMAN F. OBLON
1940 DUKE STREET
ALEXANDRIA, VIRGINIA 22314
Assignment: 25
Reel/Frame:016163/0036   Pages: 3
Recorded: 01/18/2005
Attorney Dkt #:259943USOX PCT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LORTZ, WOLFGANG
Exec Dt:
12/17/2004
2
BATZ-SOHN, CHRISTOPH
Exec Dt:
12/01/2004
3
HASENZAHL, STEFFEN
Exec Dt:
01/04/2005
4
PERLET, GABRIELE
Exec Dt:
12/07/2004
5
WILL, WERNER
Exec Dt:
12/07/2004
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
DUESSELDORF 40474, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20050169861
10510946
Correspondence name and address
OBLON, SPIVAK, MCCLELLAND, MAIER & NEUST
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 26
Reel/Frame:016367/0491   Pages: 3
Recorded: 03/15/2005
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LORTZ, WOLFGANG
Exec Dt:
01/27/2005
2
BATZ-SOHN, CHRISTOPH
Exec Dt:
01/28/2005
3
HASENZAHL, STEFFEN
Exec Dt:
01/31/2005
4
PERLET, GABRIELE
Exec Dt:
01/27/2005
5
WILL, WERNER
Exec Dt:
01/27/2005
6
MATHIAK, RALF
Exec Dt:
01/06/2005
7
JENNI, KLAUS
Exec Dt:
01/06/2005
Assignees
1
DEGUSSA AG
BENNIGSENPLATZ 1
DUESSELDORF 40474, GERMANY
2
GOLDSCHMIDT AG
GOLDSCHMIDTSTRASSE 100
ESSEN 45127, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7470423
US20050224749
10512684
Correspondence name and address
OBLON, SPIVAK, MCCLELLAND, MAIER & NEUST
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 27
Reel/Frame:015789/0971   Pages: 3
Recorded: 03/17/2005
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HASENZAHL, STEFFEN
Exec Dt:
03/02/2005
2
BRAUNAGEL, ALFRED
Exec Dt:
02/12/2005
3
RIEDEMANN, HEIKE
Exec Dt:
02/07/2005
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
DUESSELDORF, GERMANY DE-40474
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20050192190
11068500
Correspondence name and address
ROBERT G. WEILACHER, ESQ.
1230 PEACHTREE STREET, N.E.
SUITE 3100, PROMENADE II
ATLANTA, GA 30309-3592
Assignment: 28
Reel/Frame:016017/0797   Pages: 3
Recorded: 05/16/2005
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HASENZAHL, STEFFEN
Exec Dt:
04/13/2005
2
DREXEL, CLAUS-PETER
Exec Dt:
03/20/2005
3
MEYER, JURGEN
Exec Dt:
03/07/2005
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
DUESSELDORF, GERMANY DE-40474
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8012367
US20060017038
10532202
Correspondence name and address
ROBERT G. WEILACHER, ESQ.
1230 PEACHTREE STREET, N.E.
SUITE 3100, PROMENADE II
ATLANTA, GA 30309-3592
Assignment: 29
Reel/Frame:023125/0578   Pages: 7
Recorded: 08/20/2009
Attorney Dkt #:032301.608
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HASENZAHL, STEFFEN
Exec Dt:
04/13/2005
2
DRECHSLER, MARGARETE
Exec Dt:
03/10/2005
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
DUSSELDORF, GERMANY DE-40474
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20060292192
10530326
Correspondence name and address
THOMAS G. WISEMAN
1130 CONNECTICUT AVENUE, N.W.
SUITE 1130
WASHINGTON, DC 20036
Assignment: 30
Reel/Frame:016953/0949   Pages: 3
Recorded: 09/06/2005
Attorney Dkt #:268421US0XPCT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHUMACHER, KAI
Exec Dt:
04/26/2005
2
HASENZAHL, STEFFEN
Exec Dt:
06/14/2005
3
MOERTERS, MARTIN
Exec Dt:
05/09/2005
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
DUESSELDORF 40474, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20050265934
10530708
Correspondence name and address
OBLON, SPIVAK, MCCLELLAND, MAIER & NEUST
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 31
Reel/Frame:016812/0264   Pages: 3
Recorded: 07/27/2005
Attorney Dkt #:262383US0X
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HASENZAHL, STEFFEN
Exec Dt:
06/27/2005
2
BRAUNAGEL, ALFRED
Exec Dt:
07/08/2005
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
DE-40474, DUESSELDORF, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20050255134
10998551
Correspondence name and address
OBLON, SPIVAK, MCCLELLAND, MAIER & NEUST
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 32
Reel/Frame:017367/0558   Pages: 3
Recorded: 12/16/2005
Attorney Dkt #:272642US0XPCT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHUMACHER, KAI
Exec Dt:
06/20/2005
2
BATZ-SOHN, CHRISTOPH
Exec Dt:
06/21/2005
3
HASENZAHL, STEFFEN
Exec Dt:
06/28/2005
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
DUESSELDORF 40474, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7244302
US20060057385
10539061
Correspondence name and address
OBLON, SPIVAK, MCCLELLAND, MAIER & NEUST
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 33
Reel/Frame:017313/0764   Pages: 7
Recorded: 03/16/2006
Attorney Dkt #:032301.440
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
NEUGEBAUER, PETER
Exec Dt:
01/05/2006
2
HASENZAHL, STEFFEN
Exec Dt:
01/03/2006
3
DREXEL, CLAUS-PETER
Exec Dt:
02/01/2006
4
MEYER, JURGEN
Exec Dt:
01/11/2006
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
DUSSELDORF, GERMANY DE-40474
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20060229210
10568012
Correspondence name and address
ROBERT G. WEILACHER
1230 PEACHTREE STREET, NE
SUITE 3100, PROMENADE II
ATLANTA, GA 30309
Assignment: 34
Reel/Frame:017184/0290   Pages: 7
Recorded: 02/17/2006
Attorney Dkt #:032301.439
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MEYER, JUERGEN
Exec Dt:
01/31/2006
2
HASENZAHL, STEFFEN
Exec Dt:
02/07/2006
3
RIEDEMANN, HEIKE
Exec Dt:
01/31/2006
4
GRAY, ANN
Exec Dt:
02/01/2006
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
DUESSELDORF, GERMANY DE-40474
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20060159637
11316591
Correspondence name and address
ROBERT G. WEILACHER, ESQ.
1230 PEACHTREE STREET, N.E.
SUITE 3100, PROMENADE II
ATLANTA, GA 30309-3592
Assignment: 35
Reel/Frame:017737/0665   Pages: 10
Recorded: 03/31/2006
Attorney Dkt #:39509-226304
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MEYER, JURGEN
Exec Dt:
01/11/2006
2
HASENZAHL, STEFFEN
Exec Dt:
02/07/2006
3
RIEDEMANN, HEIKE
Exec Dt:
01/05/2006
4
GRAY, ANN
Exec Dt:
01/06/2006
5
SCHUMACHER, KAI
Exec Dt:
01/10/2006
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
DUSSELDORF, GERMANY DE-40474
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20060159635
11314082
Correspondence name and address
THOMAS G. WISEMAN
VENABLE LLP
P.O. BOX 34385
WASHINGTON, DC 20043-9998
Assignment: 36
Reel/Frame:017744/0971   Pages: 7
Recorded: 03/30/2006
Attorney Dkt #:39509-226302
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MEYER, JURGEN
Exec Dt:
01/11/2006
2
HASENZAHL, STEFFEN
Exec Dt:
02/07/2006
3
RIEDEMANN, HEIKE
Exec Dt:
01/05/2006
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
DUSSELDORF, GERMANY DE-40474
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20060159636
11314083
Correspondence name and address
VENABLE LLP
P.O. BOX 34385
WASHINGTON, DC 20045-9998
Assignment: 37
Reel/Frame:017371/0878   Pages: 16
Recorded: 03/23/2006
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MEYER, JURGEN
Exec Dt:
02/07/2006
2
SCHUMACHER, KAI
Exec Dt:
02/07/2006
3
HASENZAHL, STEFFEN
Exec Dt:
02/22/2006
4
RIEDEMANN, HEIKE
Exec Dt:
02/09/2006
5
GRAY, ANN
Exec Dt:
02/09/2006
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
DE-40474 DUSSELDORF, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7255735
US20060144296
11312534
Correspondence name and address
MICHAEL A. SANZO
FITCH EVEN TABIN, ET AL.
1801 K STREET, N.W.
SUITE 401L
WASHINGTON, DC 20006-1201
Assignment: 38
Reel/Frame:017333/0470   Pages: 5
Recorded: 03/13/2006
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WALZER, EGON
Exec Dt:
02/15/2006
2
SCHMIDT, CORINNA
Exec Dt:
02/15/2006
3
BRANDNER, FRIEDHELM
Exec Dt:
02/15/2006
4
HASENZAHL, STEFFEN
Exec Dt:
03/06/2006
5
SCHOLZ, MARIO
Exec Dt:
02/17/2006
6
DEL GROSSO, BIRGIT
Exec Dt:
02/20/2006
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
DE-40474 DUSSELDORF, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20060278847
11284399
Correspondence name and address
MICHAEL A. SANZO
FITCH, EVEN, TABIN & FLANNERY
1801 K STREET, N.W., SUITE 401L
WASHINGTON, D.C. 20006-1201
Assignment: 39
Reel/Frame:018167/0578   Pages: 6
Recorded: 08/24/2006
Attorney Dkt #:032301.462
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MEYER, JURGEN
Exec Dt:
08/08/2006
2
HASENZAHL, STEFFEN
Exec Dt:
08/11/2006
3
SCHUMACHER, KAI
Exec Dt:
08/02/2006
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
DUESSELDORF, GERMANY DE-40474
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20090186053
10597419
Correspondence name and address
ROBERT G. WEILACHER, ESQ.
1230 PEACHTREE STREET, N.E.
SUITE 3100, PROMENADE II
ATLANTA, GA 30309-3592
Assignment: 40
Reel/Frame:020554/0607   Pages: 4
Recorded: 02/25/2008
Attorney Dkt #:298359US0XPCT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHUMACHER, KAI
Exec Dt:
10/06/2006
2
GOLCHERT, RAINER
Exec Dt:
10/11/2006
3
KLOTZ, OSWIN
Exec Dt:
10/06/2006
4
DIENER, UWE
Exec Dt:
10/06/2006
5
HASENZAHL, STEFFEN
Exec Dt:
10/31/2006
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
DUESSELDORF, GERMANY 40474
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20070231280
11569415
Correspondence name and address
OBLON, SPIVAK, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 41
Reel/Frame:019334/0662   Pages: 3
Recorded: 05/23/2007
Attorney Dkt #:308163US0XPCT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HASENZAHL, STEFFEN
Exec Dt:
05/08/2007
2
READER, STEPHANIE
Exec Dt:
12/21/2006
3
GRAY, ANN
Exec Dt:
12/21/2006
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
DUESSELDORF, GERMANY D-40474
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20080095724
11719966
Correspondence name and address
OBLON, SPIVAK, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 42
Reel/Frame:020423/0391   Pages: 4
Recorded: 01/28/2008
Attorney Dkt #:308241US0X PCT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HASENZAHL, STEFFEN
Exec Dt:
10/17/2007
2
DRECHSLER, MARGARETE
Exec Dt:
07/31/2007
3
READER, STEPHANIE
Exec Dt:
07/31/2007
4
GRAY, ANN
Exec Dt:
08/03/2007
Assignee
1
DEGUSSA GMBH
BENNIGSENPLATZ 1
DUESSELDORF, GERMANY 40474
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20090047225
11722763
Correspondence name and address
OBLON, SPIVAK, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 43
Reel/Frame:020512/0610   Pages: 4
Recorded: 02/14/2008
Attorney Dkt #:280661US0X PCT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HASENZAHL, STEFFEN
Exec Dt:
02/07/2008
2
RIEDEMANN, HEIKE
Exec Dt:
01/02/2008
3
WALZER, EGON
Exec Dt:
01/18/2008
4
BRANDNER, FRIEDHELM
Exec Dt:
01/18/2008
Assignee
1
EVONIK DEGUSSA GMBH
RELLINGHAUSER STRASSE 1-11
ESSEN, GERMANY 45128
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20070055009
10558263
Correspondence name and address
OBLON, SPIVAK, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 44
Reel/Frame:021622/0800   Pages: 4
Recorded: 10/02/2008
Attorney Dkt #:332008US0PCT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHUMACHER, KAI
Exec Dt:
08/04/2008
2
MOERTERS, MARTIN
Exec Dt:
08/19/2008
3
MANGOLD, HELMUT
Exec Dt:
08/28/2008
4
HASENZAHL, STEFFEN
Exec Dt:
08/12/2008
Assignee
1
EVONIK DEGUSSA GMBH
RELLINGHAUSER STR. 1-11
ESSEN, GERMANY 45128
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20090131694
12294565
Correspondence name and address
OBLON, SPIVAK, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 45
Reel/Frame:022864/0894   Pages: 6
Recorded: 06/24/2009
Attorney Dkt #:7601/19950
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WALZER, EGON
Exec Dt:
05/04/2009
2
SCHMIDT, CORINNA
Exec Dt:
04/30/2009
3
BRANDNER, FRIEDHELM
Exec Dt:
05/04/2009
4
HASENZAHL, STEFFEN
Exec Dt:
06/02/2009
5
SCHOLZ, MARIO
Exec Dt:
05/12/2009
6
DEL GROSSO, BIRGIT
Exec Dt:
06/10/2009
7
RIEDEMANN, HEIKE
Exec Dt:
05/18/2009
Assignee
1
EVONIK DEGUSSA GMBH
RELLINGHAUSER STRASSE 1-11
ESSEN, GERMANY 45128
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20090252815
12320349
Correspondence name and address
MICHAEL A. SANZO
15400 CALHOUN DRIVE
SUITE 125
ROCKVILLE, MD 20855
Assignment: 46
Reel/Frame:024139/0411   Pages: 4
Recorded: 03/25/2010
Attorney Dkt #:355692US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHUMACHER, KAI
Exec Dt:
01/26/2010
2
MOERTERS, MARTIN
Exec Dt:
02/01/2010
3
MANGOLD, HELMUT
Exec Dt:
02/15/2010
4
HASENZAHL, STEFFEN
Exec Dt:
02/16/2010
Assignee
1
EVONIK DEGUSSA GMBH
RELLINGHAUSER STRASSE 1-11
ESSEN, GERMANY 45128
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20100209339
12678595
Correspondence name and address
OBLON, SPIVAK, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 47
Reel/Frame:027123/0007   Pages: 16
Recorded: 10/26/2011
Attorney Dkt #:385070US99PCT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
STANDKE, BURKHARD
Exec Dt:
08/16/2011
2
WASSMER, CHRISTIAN
Exec Dt:
08/15/2011
3
VOEGTLIN, TIM
Exec Dt:
08/23/2011
4
LIPPERT, IRENE
Exec Dt:
08/23/2011
5
SCHARFE, STEFAN
Exec Dt:
08/15/2011
6
LACH, HEINZ
Exec Dt:
08/15/2011
7
BATZ-SOHN, CHRISTOPH
Exec Dt:
08/21/2011
8
HASENZAHL, STEFFEN
Exec Dt:
08/15/2011
Assignee
1
EVONIK DEGUSSA GMBH
RELLINGHAUSER STRASSE 1-11
ESSEN, GERMANY 45128
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8728225
US20120037040
13257488
Correspondence name and address
OBLON, SPIVAK, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314

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