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Patent Assignment Assignor Details
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Assignor Name : CASSELMANN, HOLGER
Total Assignments: 20
Assignment: 1
Reel/Frame:005455/0229   Pages: 2
Recorded: 09/21/1990
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
HALPAAP, REINHARD
Exec Dt:
09/03/1990
2
DUNWALD, WILHELM
Exec Dt:
08/31/1990
3
CASSELMANN, HOLGER
Exec Dt:
09/03/1990
4
SCHLEGEL, HANS
Exec Dt:
09/03/1990
Assignee
1
BAYER AKTIENGESELLSCHAFT
A CORP. OF GERMANY
LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5071938
NONE
07586478
Correspondence name and address
PATENT DEPARTMENT
MOBAY CORPORATION
MOBAY ROAD
PITTSBURGH, PA 15205-9741
Assignment: 2
Reel/Frame:005737/0934   Pages: 2
Recorded: 06/07/1991
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
HALPAAP, REINHARD
Exec Dt:
04/24/1991
2
DUNWALD, WILLI
Exec Dt:
04/18/1991
3
CASSELMANN, HOLGER
Exec Dt:
04/24/1991
4
SCHLEGEL, HANS
Exec Dt:
04/23/1991
Assignee
1
BAYER AKTIENGESELLSCHAFT, A CORP. OF GERMANY
LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5126422
NONE
07713238
Correspondence name and address
PATENT DEPT.
MOBAY CORP.
MOBAY RD.
PITTSBURGH, PA 15205-9741
Assignment: 3
Reel/Frame:006597/0654   Pages: 2
Recorded: 06/24/1993
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
PEDAIN, JOSEF
Exec Dt:
06/08/1993
2
MULLER, HEINO
Exec Dt:
06/14/1993
3
MAGER, DIETER
Exec Dt:
06/09/1993
4
BLUM, HARALD
Exec Dt:
06/15/1993
5
CASSELMANN, HOLGER
Exec Dt:
06/14/1993
Assignee
1
BAYER AKTIENGESELLSCHAFT KONZERNVERWALTUNG RP PATENTABTEILUNG
509 LEVERKUSEN BAYERWERK, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5294665
NONE
08082224
Correspondence name and address
DONNA J. VEATCH
MILES INC.
PATENT DEPARTMENT
MOBAY ROAD
PITTSBURGH, PA 15205
Assignment: 4
Reel/Frame:006785/0242   Pages: 3
Recorded: 11/23/1993
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KONIG, EBERHARD
Exec Dt:
10/01/1993
2
CASSELMANN, HOLGER
Exec Dt:
10/11/1993
3
KOBELKA, FRANK
Exec Dt:
10/01/1993
4
FOSTER, KEITH-ALLEN
Exec Dt:
10/12/1993
Assignees
1
BAYER AKTIENGESELLSCHAFT
LEVERKUSEN, GERMANY 51368
2
MILES INC.
PATENT DEPT.
MOBAY ROAD
PITTSBURGH, PENNSYLVANIA 15205
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5350825
NONE
08157350
Correspondence name and address
MILES INC.
DONNA J. VEATCH
PATENT DEPT.
MOBAY ROAD
PITTSBURGH, PA 15205
Assignment: 5
Reel/Frame:007371/0003   Pages: 2
Recorded: 02/24/1995
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BOCK, MANFRED
Exec Dt:
02/07/1995
2
CASSELMANN, HOLGER
Exec Dt:
02/07/1995
3
DROUVE, WERNER
Exec Dt:
02/07/1995
4
GROGLER, GERHARD
Exec Dt:
02/10/1995
5
KOPP, RICHARD
Exec Dt:
02/06/1995
6
HESS, HEINRICH
Exec Dt:
02/06/1995
Assignee
1
BAYER AKTIENGESELLSCHAFT
KONZERNVERWALTUNG RP, PATENTABTEILUNG
51368 LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5574123
NONE
08396182
Correspondence name and address
MILES INC.
THOMAS W. ROY
PATENT DEPARTMENT
MOBAY ROAD
PITTSBURGH, PA 15205
Assignment: 6
Reel/Frame:008125/0401   Pages: 2
Recorded: 07/19/1996
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WAMPRECHT, CHRISTIAN
Exec Dt:
07/04/1996
2
ENGBERT, THEODOR
Exec Dt:
07/04/1996
3
CASSELMANN, HOLGER
Exec Dt:
07/05/1996
4
PEDAIN, JOSEF
Exec Dt:
07/15/1996
5
MEIXNER, JURGEN
Exec Dt:
07/08/1996
Assignee
1
BAYER AKTIENGESELLSCHAFT KONZERNZENTRALE RP
PATENTE KONZERN
D-51368 LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5902897
NONE
08684355
Correspondence name and address
BAYER CORPORATION
THOMAS W. ROY
100 BAYER ROAD
PITTSBURGH, PA 15205
Assignment: 7
Reel/Frame:008207/0773   Pages: 2
Recorded: 09/10/1996
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHMALSTIEG, LUTZ
Exec Dt:
07/31/1996
2
PEDAIN, JOSEF
Exec Dt:
08/05/1996
3
ENGBERT, THEODOR
Exec Dt:
08/02/1996
4
CASSELMANN, HOLGER
Exec Dt:
08/02/1996
5
KOBELKA, FRANK
Exec Dt:
08/02/1996
Assignee
1
BAYER AKTIENGESELLSCHAFT
PATENTE KONZERN
KONZERNZENTRALE RP
D-51368 LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5705593
NONE
08709801
Correspondence name and address
BAYER CORPORATION
THOMAS W. ROY
PATENT DEPARTMENT
100 BAYER ROAD
PITTSBURGH, PA 15205
Assignment: 8
Reel/Frame:008950/0832   Pages: 2
Recorded: 12/11/1997
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MULLER, HANNS-PETER
Exec Dt:
11/10/1997
2
GRUTTMANN, HORST
Exec Dt:
11/10/1997
3
CASSELMANN, HOLGER
Exec Dt:
11/19/1997
4
MULLER, HEINO
Exec Dt:
11/11/1997
5
PETZOLDT, JOACHIM
Exec Dt:
11/11/1997
6
BOCK, MANFRED
Exec Dt:
11/12/1997
Assignee
1
BAYER AKTIENGESELLSCHAFT
PATENT UND LIZENZEN
KONZERNBEREICH RP
D-51368 LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5965195
NONE
08989065
Correspondence name and address
BAYER CORPORATION
DONNA J. VEATCH
PATENT DEPARTMENT
100 BAYER ROAD
PITTSBURGH, PENNSYLVANIA 15205
Assignment: 9
Reel/Frame:017556/0106   Pages: 5
Recorded: 02/14/2006
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
RISCHE, THORSTEN
Exec Dt:
01/05/2006
2
KUREK, GERALD
Exec Dt:
01/12/2006
3
CASSELMANN, HOLGER
Exec Dt:
01/10/2006
4
FELLER, THOMAS
Exec Dt:
01/09/2006
5
MUNZMAY, THOMAS
Exec Dt:
01/10/2006
6
SCHUTZE, DETLEF-INGO
Exec Dt:
01/20/2006
7
BLUM, HARALD
Exec Dt:
01/05/2006
8
MULLER, HANS-GEORG
Exec Dt:
01/25/2006
Assignee
1
BAYER MATERIALSCIENCE AG
51368 LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20060128885
11298345
Correspondence name and address
THOMAS W. ROY, BAYER MATERIALSCIENCE LLC
100 BAYER ROAD
PATENT DEPARTMENT
PITTSBURGH, PA 15205-9741
Assignment: 10
Reel/Frame:017784/0166   Pages: 3
Recorded: 04/14/2006
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KOCHER, JURGEN
Exec Dt:
03/10/2006
2
KUREK, GERALD
Exec Dt:
03/24/2006
3
CASSELMANN, HOLGER
Exec Dt:
03/13/2006
4
URBAN, JURGEN
Exec Dt:
03/15/2006
5
FELLER, THOMAS
Exec Dt:
03/13/2006
Assignee
1
BAYER MATERIALSCIENCE AG
51368 LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7425516
US20060189234
11356827
Correspondence name and address
BAYER MATERIALSCIENCE LLC
JOSEPH C. GIL
PATENT DEPARTMENT
100 BAYER ROAD
PITTSBURGH, PA 15205-9741
Assignment: 11
Reel/Frame:018110/0076   Pages: 3
Recorded: 07/28/2006
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
RISCHE, THORSTEN
Exec Dt:
05/22/2006
2
CASSELMANN, HOLGER
Exec Dt:
05/29/2006
3
FELLER, THOMAS
Exec Dt:
05/30/2006
4
BLUM, HARALD
Exec Dt:
05/24/2006
5
KUREK, GERALD
Exec Dt:
06/06/2006
Assignee
1
BAYER MATERIALSCIENCE AG
D 51368 LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20070049684
11495394
Correspondence name and address
BAYER MATERIALSCIENCE LLC
100 BAYER ROAD
PITTSBURGH, PA 15205-9741
Assignment: 12
Reel/Frame:019053/0529   Pages: 3
Recorded: 03/19/2007
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
RISCHE, THORSTEN
Exec Dt:
02/02/2007
2
FELLER, THOMAS
Exec Dt:
02/12/2007
3
CASSELMANN, HOLGER
Exec Dt:
02/13/2007
4
KUREK, GERALD
Exec Dt:
02/20/2007
5
HOFACKER, STEFFEN
Exec Dt:
02/12/2007
Assignee
1
BAYER MATERIALSCIENCE AG
51368 LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20070167565
11651773
Correspondence name and address
ROBERT S. KLEMZ
BAYER MATERIALSCIENCE LLC
PATENT DEPARTMENT
100 BAYER ROAD
PITTSBURGH, PA 15205-9741
Assignment: 13
Reel/Frame:019313/0968   Pages: 4
Recorded: 04/27/2007
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DORR, SEBASTIAN
Exec Dt:
03/26/2007
2
RISCHE, THORSTEN
Exec Dt:
04/10/2007
3
FELLER, THOMAS
Exec Dt:
04/12/2007
4
HECKES, MICHAEL
Exec Dt:
04/12/2007
5
CASSELMANN, HOLGER
Exec Dt:
04/16/2007
6
MICHAELIS, THOMAS
Exec Dt:
04/12/2007
Assignee
1
BAYER MATERIALSCIENCE AG
51368 LEVERKUSEN
GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20070259984
11796388
Correspondence name and address
BAYER MATERIALSCIENCE LLC
100 BAYER ROAD
PITTSBURGH, PA 15205-9741
Assignment: 14
Reel/Frame:019538/0385   Pages: 3
Recorded: 07/05/2007
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
RISCHE, THORSTEN
Exec Dt:
05/29/2007
2
CASSELMANN, HOLGER
Exec Dt:
06/04/2007
3
FELLER, THOMAS
Exec Dt:
06/05/2007
4
HECKS, MICHAEL
Exec Dt:
06/05/2007
5
DORR, ASEBASTIAN
Exec Dt:
06/06/2007
6
RUDHARDT, DANIEL
Exec Dt:
06/21/2007
7
MICHAELIS, THOMAS
Exec Dt:
06/05/2007
Assignee
1
BAYER MATERIALSCIENCE AG
51368 LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20070249746
11732363
Correspondence name and address
BAYER MATERIALSCIENCE LLC
100 BAYER ROAD
PITTSBURGH, PA 15205-9741
Assignment: 15
Reel/Frame:022194/0914   Pages: 4
Recorded: 02/03/2009
Attorney Dkt #:14069-00239-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GRABLOWITZ, HANS GEORG
Exec Dt:
11/20/2008
2
RISCHE, THORSTEN
Exec Dt:
11/28/2008
3
FELLER, THOMAS
Exec Dt:
11/25/2008
4
MEIXNER, JUERGEN
Exec Dt:
11/25/2008
5
NAUJOKS, KARIN
Exec Dt:
12/01/2008
6
CASSELMANN, HOLGER
Exec Dt:
11/24/2008
Assignee
1
BAYER MATERIALSCIENCE AG
PATENTS & LICENSING
BUILDING Q 18
LEVERKUSEN, GERMANY D-51368
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8048954
US20090124764
12269189
Correspondence name and address
EAMONN P. MORRISON
THE NEMOURS BUILDING
1007 NORTH ORANGE STREET, P.O. BOX 2207
WILMINGTON, DE 19899
Assignment: 16
Reel/Frame:023520/0259   Pages: 3
Recorded: 11/13/2009
Attorney Dkt #:15778-00216-us
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KOCHER, JUERGEN
Exec Dt:
07/17/2009
2
RISCHE, THORSTEN
Exec Dt:
08/20/2009
3
URBAN, EVA
Exec Dt:
09/21/2009
4
URBAN, ANNE
Exec Dt:
09/21/2009
5
CASSELMANN, HOLGER
Exec Dt:
07/21/2009
6
FELLER, THOMAS
Exec Dt:
07/21/2009
Assignee
1
BAYER MATERIALSCIENCE AG
PATENTS & LICENSING
BUILDING Q 18
LEVERKUSEN, GERMANY 51368
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20100009582
12500243
Correspondence name and address
EAMONN P. MORRISON
CONNOLLY BOVE LODGE & HUTZ LLP
1007 NORTH ORANGE STREET
P.O. BOX 2207
WILMINGTON, DE 19899-2207
Assignment: 17
Reel/Frame:023702/0390   Pages: 8
Recorded: 12/22/2009
Attorney Dkt #:15778-00200-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GRABLOWITZ, HANS G.
Exec Dt:
10/20/2009
2
RISCHE, THORSTEN
Exec Dt:
11/02/2009
3
FELLER, THOMAS
Exec Dt:
11/02/2009
4
KLEE, HANS-PETER, JUERGEN URBAN (DECEASED)
Exec Dt:
11/16/2009
5
URBAN, LEGAL HEIR-EVA
Exec Dt:
11/10/2009
6
URBAN, LEGAL HEIR-ANNE
Exec Dt:
11/10/2009
7
CASSELMANN, HOLGER
Exec Dt:
11/04/2009
8
ZASTROW, ALFRED
Exec Dt:
10/28/2009
9
MICHAELIS, THOMAS
Exec Dt:
11/02/2009
Assignee
1
BAYER MATERIALSCIENCE AG
PATENTS & LICENSING
BUILDING Q 18
LEVERKUSEN, GERMANY 51368
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7972982
US20090239431
12401956
Correspondence name and address
EAMONN P. MORRISON
CONNOLLY BOVE LODGE & HUTZ LLP
1007 NORTH ORANGE STREET
P.O. BOX 2207
WILMINGTON, DE 19899-2207
Assignment: 18
Reel/Frame:028912/0827   Pages: 4
Recorded: 09/07/2012
Attorney Dkt #:14069-00442-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SOMMER, STEFAN
Exec Dt:
08/23/2012
2
WEIKARD, JAN
Exec Dt:
08/23/2012
3
CASSELMANN, HOLGER
Exec Dt:
08/23/2012
4
MICHAELIS, THOMAS
Exec Dt:
08/23/2012
5
LUEHMANN, ERHARD
Exec Dt:
08/24/2012
Assignee
1
BAYER INTELLECTUAL PROPERTY GMBH
CREATIVE CAMPUS MONHEIM
ALFRED-NOBEL-STR. 10
MONHEIM, GERMANY 40789
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9321893
US20120329895
13583251
Correspondence name and address
CONNOLLY BOVE LODGE & HUTZ, LLP
1007 NORTH ORANGE STREET
WILMINGTON, DE 19801
Assignment: 19
Reel/Frame:035690/0292   Pages: 4
Recorded: 05/21/2015
Attorney Dkt #:074023-0596-US-522827
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MATNER, MATHIAS
Exec Dt:
03/26/2015
2
CASSELMANN, HOLGER
Exec Dt:
05/13/2015
3
ZHUANG, WEI
Exec Dt:
04/02/2015
4
ACHTEN, DIRK
Exec Dt:
03/30/2015
5
EHLERS, MICHAEL
Exec Dt:
03/26/2015
Assignee
1
BAYER MATERIALSCIENCE AG
ALFRED-NOBEL-STR. 10
MONHEIM AM RHEIN, GERMANY 40789
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20150246998
14624761
Correspondence name and address
DRINKER BIDDLE & REATH LLP (WM)
222 DELAWARE AVENUE, STE. 1410
WILMINGTON, DE 19801-1621
Assignment: 20
Reel/Frame:046307/0986   Pages: 10
Recorded: 07/10/2018
Attorney Dkt #:074023-0756-US-569621
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ACHTEN, DIRK
Exec Dt:
09/14/2017
2
MATNER, MATHIAS
Exec Dt:
09/13/2017
3
CASSELMANN, HOLGER
Exec Dt:
05/30/2018
4
EHLERS, MICHAEL
Exec Dt:
03/07/2018
Assignee
1
COVESTRO DEUTSCHLAND AG
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10597484
US20180086875
15568127
Correspondence name and address
DRINKER BIDDLE & REATH LLP (WM)
222 DELAWARE AVENUE, STE. 1410
WILMINGTON, DE 19801-1621

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