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Patent Assignment Assignor Details
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Assignor Name : BARTZ, WILFRIED
Total Assignments: 14
Assignment: 1
Reel/Frame:003891/0886   Pages: 1
Recorded: 08/18/1981
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
BARTZ, WILFRIED
Exec Dt:
09/10/1980
Assignee
1
CHEMISCHE WERKE HUELS, AG
PATENTABTEILUNG
4370 MARL 1, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4309260
NONE
06205129
Correspondence name and address
MILLEN & WHITE
503 CRYSTAL MALL, BLDG. 1
1911 JEFF. DAVIS HWY.
ARLINGTON, VA 22202
Assignment: 2
Reel/Frame:003891/0957   Pages: 1
Recorded: 08/20/1981
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
BARTZ, WILFRIED
Exec Dt:
09/10/1980
Assignee
1
CHEMISCHE WERKE HUELS, AG
PATENTABTEILUNG
4370 MARL 1, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4312730
NONE
06205130
Correspondence name and address
MILLEN & WHITE
503 CRYSTAL MALL, BLDG. 1
1911 JEFF. DAVIS HWY.
ARLINGTON, VA 22202
Assignment: 3
Reel/Frame:004298/0393   Pages: 1
Recorded: 09/12/1984
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
ZAGEFKA, HANS-DIETER
Exec Dt:
12/21/1982
2
BARTZ, WILFRIED
Exec Dt:
12/21/1982
3
KONIETZNY, ALFRED
Exec Dt:
12/21/1982
Assignee
1
CHEMISCHE WERKE HUELS AKTIENGESELLSCHAFT
MARL,, GERMANY D 4370
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4496613
NONE
06457551
Correspondence name and address
MILLEN & WHITE
503 CRYSTAL MALL, BLDG. 1
1911 JEFF. DAVIS HWY.
ARLINGTON, VA 22202
Assignment: 4
Reel/Frame:004852/0729   Pages: 1
Recorded: 02/05/1988
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
JADAMUS, HANS
Exec Dt:
03/04/1987
2
DROESCHER, MICHAEL
Exec Dt:
03/04/1987
3
BARTZ, WILFRIED
Exec Dt:
03/04/1987
Assignee
1
HUELS AKTIENGESELLSCHAFT
MARL, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4755552
NONE
07040896
Correspondence name and address
MILLEN AND WHITE
503 CRYSTAL MALL 1
1911 JEFFERSON DAVIS HIGHWAY
ARLINGTON, VA 22202
Assignment: 5
Reel/Frame:004917/0015   Pages: 1
Recorded: 08/09/1988
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
BARTZ, WILFRIED
Exec Dt:
05/07/1987
Assignee
1
HUELS AKTIENGESELLSCHAFT, MARL, FED. REP. OF GERMANY.
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4840993
NONE
07040917
Correspondence name and address
MILLEN AND WHITE
503 CRYSTAL MALL 1
1911 JEFFERSON DAVIS HWY.
ARLINGTON, VA 22202
Assignment: 6
Reel/Frame:005214/0548   Pages: 1
Recorded: 01/16/1990
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
BARTZ, WILFRIED
Exec Dt:
05/20/1987
Assignee
1
HUELS AKTIENGESELLSCHAFT
MARL, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4920174
NONE
07063057
Correspondence name and address
MILLEN, WHITE & ZELANO, P.C.
ARLINGTON COURTHOUSE PLAZA 1
2200 CLARENDON BLVD. SUITE 1201
ARLINGTON, VA 22201
Assignment: 7
Reel/Frame:005254/0156   Pages: 2
Recorded: 02/28/1990
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
SCHUELER, RALF
Exec Dt:
03/03/1989
2
MUEGGE, JOACHIM
Exec Dt:
03/08/1989
3
DROESCHER, MICHAEL
Exec Dt:
03/08/1989
4
BARTZ, WILFRIED
Exec Dt:
03/08/1989
5
FEINAUER, ROLAND
Exec Dt:
03/08/1989
Assignee
1
HUELS AKTIENGESELLSCHAFT
D-4370 MARL
POSTFACH, GERMANY 1320
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4923926
NONE
07333281
Correspondence name and address
OBLON, FISHER, SPIVAK,
MC CLELLAND AND MAIER
CRYSTAL SQUARE 5 - SUITE 400
1755 SOUTH JEFFERSON DAVIS HWY.
ARLINGTON, VA 22202
Assignment: 8
Reel/Frame:005741/0523   Pages: 3
Recorded: 06/20/1991
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
SCHUELER, RALF
Exec Dt:
02/14/1990
2
HERKT-MAETZKY, CHRISTIAN
Exec Dt:
02/14/1990
3
BARTZ, WILFRIED
Exec Dt:
02/14/1990
Assignee
1
HUELS AKTIENGESELLSCHAFT
HUELS AG
POSTFACH 1320, D-4370 MARL, WEST GERMANY
GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5053440
NONE
07504840
Correspondence name and address
OBLON, SPIVAK, MC CLELLAND, MAIER &
NEUSTADT
FOURTH FLOOR
1755 JEFFERSON DAVIS HWY
ARLINGTON, VA 22202
Assignment: 9
Reel/Frame:011928/0779   Pages: 3
Recorded: 06/22/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BARTZ, WILFRIED
Exec Dt:
05/18/2001
2
BAUMANN, FRANZ-ERICH
Exec Dt:
05/18/2001
3
SCHMITZ, GUIDO
Exec Dt:
05/18/2001
4
OENBRINK, GEORG
Exec Dt:
05/18/2001
5
HAEGER, HARALD
Exec Dt:
05/18/2001
Assignee
1
DEGUSSA-HUELS AKTIENGESELLSCHAFT
WEISSFRAUENSTRASSE 9
D-60287 FRANKFURT, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6579581
US20020019477
09886217
Correspondence name and address
OBLON SPIVAK MCCLELLAND MAIER & NEUSTADT
STEPHEN G. BAXTER, PH.D.
1755 JEFF DAVIS HWY., 4TH FLOOR
ARLINGTON, VA 22202
Assignment: 10
Reel/Frame:012390/0165   Pages: 3
Recorded: 12/19/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HIMMELMANN, MARTIN
Exec Dt:
12/04/2001
2
BARTZ, WILFRIED
Exec Dt:
12/04/2001
3
BAUMANN, FRANZ-ERICH
Exec Dt:
12/04/2001
4
SCHMITZ, GUIDO
Exec Dt:
12/04/2001
5
OENBRINK, GEORG
Exec Dt:
12/04/2001
6
HAEGER, HARALD
Exec Dt:
12/04/2001
7
RICHTER, RALF
Exec Dt:
12/04/2001
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
40474 DUESSELDORF, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6677015
US20020119267
10021355
Correspondence name and address
OBLON, SPIVAK, MCCLELLAND, MAIER, ET AL
KIRSTEN A. GRUENEBERG, PH.D.
4TH FLOOR 1755 JEFFERSON DAVIS HIGHWAY
ARLINGTON, VIRGINIA 22202
Assignment: 11
Reel/Frame:012401/0495   Pages: 3
Recorded: 12/21/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHMITZ, GUIDO
Exec Dt:
12/10/2001
2
HAEGER, HARALD
Exec Dt:
12/10/2001
3
RIES, HANS
Exec Dt:
12/10/2001
4
BARTZ, WILFRIED
Exec Dt:
12/10/2001
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
D-40474 DUESSELDORF, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20020142118
10024386
Correspondence name and address
OBLON SPIVAK MCCLELLAND MAIER & NEUSTADT
JOHN K. PIKE
1755 JEFFERSON DAVIS HIGHWAY, 4TH FLOOR
ARLINGTON, VA 22202
Assignment: 12
Reel/Frame:014013/0604   Pages: 3
Recorded: 04/30/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BAUMANN, FRANZ-ERICH
Exec Dt:
04/30/2003
2
HIMMELMANN, MARTIN
Exec Dt:
04/30/2003
3
BARTZ, WILFRIED
Exec Dt:
04/30/2003
4
FARGES, OLIVIER
Exec Dt:
04/30/2003
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
D-40474 DUESSELDORF, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6884485
US20030162899
10347439
Correspondence name and address
OBLON, SPIVAK, MCCLELLAND, MAIER ET AL
KIRSTEN A. GRUENEBERG
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 13
Reel/Frame:015587/0305   Pages: 3
Recorded: 07/16/2004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BAUMANN, FRANZ-ERICH
Exec Dt:
06/21/2004
2
BARTZ, WILFRIED
Exec Dt:
06/21/2004
3
HIMMELMANN, MARTIN
Exec Dt:
06/21/2004
4
FARGES, OLIVIER
Exec Dt:
06/21/2004
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1
DUESSELDORF, GERMANY 40474
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7582342
US20050014842
10892089
Correspondence name and address
OBLON, SPIVAK, MCCLELLAND, MAIER & NEUST
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 14
Reel/Frame:015939/0128   Pages: 3
Recorded: 10/29/2004
Attorney Dkt #:251026USO
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WURSCHE, ROLAND
Exec Dt:
09/30/2004
2
DOWE, ANDREAS
Exec Dt:
09/30/2004
3
BAUMANN, FRANZ-ERICH
Exec Dt:
09/30/2004
4
BARTZ, WILFRIED
Exec Dt:
09/30/2004
5
HIMMELMANN, MARTIN
Exec Dt:
09/30/2004
6
GOERING, RAINER
Exec Dt:
09/30/2004
Assignee
1
DEGUSSA AG
BENNIGSENPLATZ 1,
40474 DUESSELDORF-, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20050038201
10918343
Correspondence name and address
OBLON, SPIVAK, MCCLELLAND, MAIER & NEUST
1940 DUKE STREET
ALEXANDRIA, VA 22314

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