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Patent Assignment Assignor Details
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Assignor Name : WOLFF, SIEGFRIED
Total Assignments: 24
Assignment: 1
Reel/Frame:004180/0573   Pages: 2
Recorded: 10/21/1983
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
KREHER, ALFONS
Exec Dt:
07/03/1980
2
KUHNER, GERHARD
Exec Dt:
07/05/1980
3
ROTHBUHR, LOTHAR
Exec Dt:
07/05/1980
4
TURK, GUNTER
Exec Dt:
07/09/1980
5
WOLFF, SIEGFRIED
Exec Dt:
07/09/1980
Assignee
1
DEGUSSA AKTIENGESELLSCHAFT
WEISSFRAUENSTR. 9
6000 FRANKFURT/MAIN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4430280
NONE
06131533
Correspondence name and address
CUSHMAN, DARBY & CUSHMAN
1801 K ST., N.W.
WASHINGTON, DC 20006
Assignment: 2
Reel/Frame:004064/0767   Pages: 3
Recorded: 11/26/1982
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
KUHNER, GERHARD
Exec Dt:
07/24/1981
2
WOLFF, SIEGFRIED
Exec Dt:
08/05/1981
3
ROTHBUHR, LOTHAR
Exec Dt:
08/05/1981
Assignee
1
DEGUSSA AKTIENGESELLSCHAFT
WEISSFRAUENSTRASSE 9
A GERMAN CORP.
6000 FRANKFURT/MAIN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4381949
NONE
06231475
Correspondence name and address
CUSHMAN, DARBY & CUSHMAN
8TH FLR., 1801 K ST., N. W.
WASHINGTON, DC 20006
Assignment: 3
Reel/Frame:004355/0717   Pages: 3
Recorded: 01/30/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
KERNER, DIETER
Exec Dt:
12/21/1984
2
KLEINSCHMIT, PETER
Exec Dt:
12/21/1984
3
PARKHOUSE, ALAN
Exec Dt:
12/21/1984
4
WOLFF, SIEGFRIED
Exec Dt:
12/21/1984
Assignee
1
DEGUSSA AKTIENGESELLSCHAFT
WEISSFRAUENSTRASSE 9
A CORP OF GERMANY
6000 FRANKFURT/MAIN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4514231
NONE
06602768
Correspondence name and address
CUSHMAN, DARBY & CUSHMAN
8TH FLOOR, 1801 K STREET, N. W.
8TH FLOOR,
WASHINGTON, DC 20006
Assignment: 4
Reel/Frame:004364/0780   Pages: 3
Recorded: 02/22/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
WOLFF, SIEGFRIED
Exec Dt:
01/11/1985
2
GREWATTA, HEINZ
Exec Dt:
01/11/1985
3
BUDER, WOLFGANG
Exec Dt:
01/25/1985
Assignee
1
DEGUSSA AKTIENGESELLSCHAFT
WEISSFRAUENSTRASSE 9
A CORP. OF GERMANY
6000 FRANKFURT/MAIN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4517335
NONE
06621626
Correspondence name and address
CUSHMAN, DARBY & CUSHMAN
8TH FLR., 1801 K ST., N. W.
WASHINGTON, DC 20006
Assignment: 5
Reel/Frame:004385/0953   Pages: 3
Recorded: 04/03/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
WOLFF, SIEGFRIED
Exec Dt:
01/11/1985
2
GOLOMBECK, PAUL
Exec Dt:
01/11/1985
Assignee
1
DEGUSSA AKTIENGESELLSCHAFT
WEISSFRAUENSTRASSE 9
6000 FRANKFURT/MAIN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4524169
NONE
06579914
Correspondence name and address
BEVERIDGE, DE GRANDI & KLINE
STE. 1100, FEDERAL BAR BLDG. WEST
1819 H ST., N. W.
WASHINGTON, DC 20006
Assignment: 6
Reel/Frame:004578/0815   Pages: 3
Recorded: 07/18/1986
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
SCHWARZE, WERNER
Exec Dt:
05/22/1986
2
WOLFF, SIEGFRIED
Exec Dt:
05/22/1986
3
REMMEL, HANS
Exec Dt:
05/26/1986
4
LAMBERTZ, HORST
Exec Dt:
05/26/1986
Assignee
1
DEGUSSA AKTIENGESELLSCHAFT
WEISSFRAUENSTRASSE 9
6000 FRANKFURT/MAIN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4621121
NONE
06693343
Correspondence name and address
CUSHMAN, DARBY & CUSHMAN
ELEVENTH FLOOR
1615 L STREET, N. W.
WASHINGTON, DC 20036-5601
Assignment: 7
Reel/Frame:004666/0165   Pages: 3
Recorded: 02/13/1987
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
KERNER, DIETER
Exec Dt:
05/26/1986
2
KLEINSCHMIT, PETER
Exec Dt:
05/26/1986
3
PARKHOUSE, ALAN
Exec Dt:
06/23/1986
4
WOLFF, SIEGFRIED
Exec Dt:
05/26/1986
Assignee
1
DEGUSSA AKTIENGESELLSCHAFT
WEISSFRAUENSTRASSE 9
6000 FRANKFURT/MAIN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4704414
NONE
06764994
Correspondence name and address
CUSHMAN, DARBY & CUSHMAN
1615 L ST., N. W., 11TH FLR.
WASHINGTON, DC 20036
Assignment: 8
Reel/Frame:004598/0338   Pages: 3
Recorded: 09/05/1986
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
WOLFF, SIEGFRIED
Exec Dt:
08/12/1986
2
SCHWARZE, WERNER
Exec Dt:
08/19/1986
3
GREWATTA, HEINZ
Exec Dt:
08/12/1986
Assignee
1
DEGUSSA AKTIENGESELLSCHAFT
WEISSFRAUENSTRASSE 9
6000 FRANKFURT/MAIN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4636550
NONE
06756087
Correspondence name and address
CUSHMAN, DARBY & CUSHMAN
1615 L ST., N. W., 11TH FLR.
WASHINGTON, DC 20036
Assignment: 9
Reel/Frame:004632/0856   Pages: 3
Recorded: 11/20/1986
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
DESCHLER, ULRICH
Exec Dt:
09/10/1976
2
PANSTER, PETER
Exec Dt:
09/10/1986
3
KLEINSCHMIT, PETER
Exec Dt:
09/09/1986
4
WOLFF, SIEGFRIED
Exec Dt:
09/12/1986
5
TAN, EWE-HONG
Exec Dt:
09/03/1986
Assignee
1
DEGUSSA AKTIENGESELLSCHAFT
WEISSFRAUENSTRABE 9
A CORP OF GERMANY
6000 FRANKFURT/MAIN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4645850
NONE
06756088
Correspondence name and address
CUSHMAN, DARBY & CUSHMAN
1615 L ST., N. W.
WASHINGTON, DC 20036
Assignment: 10
Reel/Frame:004669/0808   Pages: 3
Recorded: 02/25/1987
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
SCHWARZE, WERNER
Exec Dt:
02/06/1987
2
WOLFF, SIEGFRIED
Exec Dt:
02/06/1987
3
REMMEL, HANS
Exec Dt:
02/06/1987
4
LAMBERTZ, HORST
Exec Dt:
02/06/1987
Assignee
1
DEGUSSA AKTIENGESELLSCHAFT, A GERMAN CORP
WEISSFRAUENSTRASSE 9
6000 FRANKFURT/MAIN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4673741
NONE
06854497
Correspondence name and address
CUSHMAN, DARBY & CUSHMAN
11TH FLR., 1615 L STREET N.W.
WASHINGTON, DC 20036
Assignment: 11
Reel/Frame:005175/0740   Pages: 3
Recorded: 11/06/1989
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
SCHWARZE, WERNER
Exec Dt:
07/24/1987
2
WOLFF, SIEGFRIED
Exec Dt:
07/24/1987
3
LAMBERTZ, HORST
Exec Dt:
07/24/1987
Assignee
1
DEGUSSA AKTIENGESELLSCHAFT
WEISSFRAUENSTRABE 9
A CORP. OF FEDERAL REPUBLIC OF GERMANY
6000 FRANKFURT/MAIN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5037872
NONE
07312419
Correspondence name and address
CUSHMAN, DARBY AND CUSHMAN
ELEVENTH FLOOR
1615 L STREET, N. W.
WASHINGTON, DC 20036-5601
Assignment: 12
Reel/Frame:005033/0694   Pages: 3
Recorded: 03/30/1989
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
DESCHLER, ULRICH
Exec Dt:
11/06/1987
2
HELLWIG, GEORG
Exec Dt:
11/06/1987
3
MICHEL, RUDOLF
Exec Dt:
11/06/1987
4
KLEINSCHMIT, PETER
Exec Dt:
11/06/1987
5
WOLFF, SIEGFRIED
Exec Dt:
11/11/1987
Assignee
1
DEGUSSA AKTIENGESELLSCHAFT
WEISSFRAUENSTRASSE 9
6000 FRANKFURT/MAIN, GERMANY \
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4837322
NONE
07089895
Correspondence name and address
CUSHMAN. DARBY AND CUSHMAN
11TH FLOOR
1615 L STREET, N.W.
WASHINGTON, DC 20036-5601
Assignment: 13
Reel/Frame:005340/0107   Pages: 3
Recorded: 06/13/1990
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
WOLFF, SIEGFRIED
Exec Dt:
05/27/1990
2
GREWATTA, HEINZ
Exec Dt:
05/21/1990
Assignee
1
DEGUSSA AKTIENGESELLSCHAFT
WEISSFRAUENSTRASSE 9
A CORP. OF THE FED. REP. OF GERMANY
6000 FRANKFURT AM MAIN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4952641
NONE
07357727
Correspondence name and address
CUSHMAN, DARBY & CUSHMAN
ELEVENTH FLOOR
1615 L STREET, N. W.
WASHINGTON, DC 20036
Assignment: 14
Reel/Frame:006036/0950   Pages: 3
Recorded: 03/12/1992
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
DESCHLER, ULRICH
Exec Dt:
08/22/1990
2
KLEINSCHMIT, PETER
Exec Dt:
08/15/1990
3
WOLFF, SIEGFRIED
Exec Dt:
08/28/1990
4
TAN, EWE-HONG
Exec Dt:
08/28/1990
Assignee
1
DEGUSSA AKTIENGESELLSCHAFT, A CORP. OF THE FED. REP. OF GERMANY
WEISSFRAUEN-STRASSE 9
6000 FRANKFURT AM MAIN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5073644
NONE
07375923
Correspondence name and address
CUSHMAN, DARBY & CUSHMAN
ATTN: LAWRENCE A. HYMO
1615 L STREET, N.W.
WASHINGTON, DC 20036-5601
Assignment: 15
Reel/Frame:005654/0695   Pages: 3
Recorded: 03/28/1991
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
WOLFF, SIEGFRIED
Exec Dt:
03/11/1991
2
GORL, UDO
Exec Dt:
03/11/1991
3
MEIER, KARL
Exec Dt:
03/11/1991
Assignee
1
DEGUSSA AKTIENGESELLSCHAFT, A GERMAN CORP.
WEISSFRAUENSTRASSE 9
6000 FRANKFURT AM MAIN 1, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5143962
NONE
07676337
Correspondence name and address
CUSHMAN, DARBY & CUSHMAN
1615 L STREET, N.W.
ELEVENTH FLOOR
WASHINGTON, D.C. 20036-5601
Assignment: 16
Reel/Frame:005665/0216   Pages: 3
Recorded: 04/09/1991
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
WOLFF, SIEGFRIED
Exec Dt:
03/19/1991
2
GORL, UDO
Exec Dt:
03/19/1991
Assignee
1
DEGUSSA AKTIENGESELLSCHAFT, A CORP. OF THE FED. REP. OF GERMANY
WEISSFRAUENSTRASE 9,
6000 FRANKFURT AM MAIN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5025047
NONE
07615267
Correspondence name and address
BEVERIDGE, DEGRANDI & WEILACHER
SUITE 1100
1819 H STREET, N.W.
WASHINGTON, DC 20006
Assignment: 17
Reel/Frame:005746/0564   Pages: 3
Recorded: 06/17/1991
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
WOLFF, SIEGFRIED
Exec Dt:
06/04/1991
2
GORL, UDO
Exec Dt:
06/04/1991
Assignee
1
DEGUSSA AKTIENGESELLSCHAFT A GERMAN CORPORATION
WEISSFRAUENSTRASSE 9, 6000 FRANKFURT AM MAIN 1, GERMANY
GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5159009
NONE
07716108
Correspondence name and address
CUSHMAN, DARBY & CUSHMAN
11TH FLOOR
1615 L STREET N.W.
WASHINGTON, DC 20036
Assignment: 18
Reel/Frame:005852/0430   Pages: 3
Recorded: 09/26/1991
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
WOLFF, SIEGFRIED
Exec Dt:
08/23/1991
2
GOERL, UDO
Exec Dt:
08/23/1991
3
MEIER, KARL
Exec Dt:
08/23/1991
Assignee
1
DEGUSSA AKTIENGESELLSCHAFT
A CORP. OF GERMANY
WEISSFRAUENSTRASSE 9
6000 FRANKFURT AM MAIN 1, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5184779
NONE
07756201
Correspondence name and address
BEVERIDGE, DEGRANDI & WEILACHER
1819 H ST., N.W., STE. 1100
WASHINGTON, DC 20006
Assignment: 19
Reel/Frame:005943/0083   Pages: 3
Recorded: 12/06/1991
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
GOERL, UDO
Exec Dt:
11/26/1991
2
WOLFF, SIEGFRIED
Exec Dt:
11/26/1991
Assignee
1
DEGUSSA AKTIENGESELLSCHAFT
WEISSFRAUENSTRASSE 9
6000 FRANKFURT AM MAIN 1, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5219963
NONE
07803043
Correspondence name and address
BEVERIDGE, DEGRANDI & WEILACHER
FEDERAL BAR BUILDING WEST
1819 H STREET, N.W., SUITE 1100
WASHINGTON, DC 20006
Assignment: 20
Reel/Frame:005962/0800   Pages: 3
Recorded: 01/08/1992
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
WOLFF, SIEGFRIED
Exec Dt:
12/11/1991
2
GORL, UDO
Exec Dt:
12/11/1990
3
DEUSSER, HANS
Exec Dt:
12/11/1991
Assignee
1
DEGUSSA AKTIENGESELLSCHAFT, A CORPORATION OF THE FED. REP. OF GERMANY
WEISSFRAUENSTRASSE 9
6000 FRANKURT AM MAIN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5116886
NONE
07655780
Correspondence name and address
CUSHMAN, DARBY & CUSHMAN
ELEVENTH FLOOR
1615 L STREET, NW
WASHINGTON, DC 20036
Assignment: 21
Reel/Frame:005965/0630   Pages: 3
Recorded: 12/20/1991
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
GOERL, UDO
Exec Dt:
12/11/1991
2
WOLFF, SIEGFRIED
Exec Dt:
12/17/1991
Assignee
1
DEGUSSA AKTIENGESELLSCHAFT A GERMAN CORP.
WEISSFRAUENSTRASSE 9
6000 FRANKFURT AM MAIN 1, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5216055
NONE
07811530
Correspondence name and address
ROBERT G. WEILACHER
FEDERAL BAR BUILDING WEST
1819 H STREET, N.W., SUITE 1100
WASHINGTON, D.C. 20006
Assignment: 22
Reel/Frame:006319/0614   Pages: 4
Recorded: 11/09/1992
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
WOLFF, SIEGFRIED
Exec Dt:
05/20/1992
2
GOERL, UDO
Exec Dt:
05/20/1992
Assignee
1
DEGUASSA AKTIENGESELLSCHAFT, A CORPORATION OF THE FEDERAL REPUBLIC OF GERMANY
WEISSFRAUENSTRASSE 9
6000 FRANKFURT AM MAIN 1, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5401789
NONE
07892990
Correspondence name and address
ROBERT G. WEILACHER
1850 M STREET, N.W.
SUITE 800
WASHINGTON, D.C. 20036
Assignment: 23
Reel/Frame:006410/0192   Pages: 4
Recorded: 01/22/1993
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
MEIER, KARL
Exec Dt:
01/13/1993
2
GOERL, UDO
Exec Dt:
01/13/1993
3
WOLFF, SIEGFRIED
Exec Dt:
01/13/1993
Assignee
1
DEGUSSA AKTIENGESELLSCHAFT
WEISSFRAUENSTRASSE 9
6000 FRANKFURT AM MAIN 1, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5321070
NONE
08008563
Correspondence name and address
ROBERT G. WEILACHER
BEVERIDGE DEGRANDI ET AL.
1850 M STREET, NW, SUITE 800
WASHINGTON, DC 20036
Assignment: 24
Reel/Frame:007813/0456   Pages: 5
Recorded: 02/21/1996
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WOLFF, SIEGFRIED
Exec Dt:
02/12/1996
2
PANENKA, RAINER
Exec Dt:
02/08/1996
3
HADDEMAN, MARINUS
Exec Dt:
02/14/1996
4
NAKAHAMA, HIDENARI
Exec Dt:
01/29/1996
Assignees
1
DEGUSSA AKTIENGESELLSCHAFT
WEISSFRAUENSTRASSE 8
FRANKFURT, GERMANY
2
MITSUI PETROCHEMICAL INDUSTRIES, LTD.
NISHIGOTANDA SHINGAWA-KU
GOTANDA YAMAZAKI BLDG. 6F & 7F., 7-13-6
TOKYO 141, JAPAN
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6521713
US20020061979
08417858
Correspondence name and address
BEVERIDGE DEGRANDI ET AL.
G. BYRON STOVER
1850 M ST., N.W., SUITE 800
WASHINGTON, DC 20036

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