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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 : KELBCH, STEFAN
Total Assignments: 11
Assignment: 1
Reel/Frame:006715/0677   Pages: 2
Recorded: 09/22/1993
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHOLL, THOMAS
Exec Dt:
07/21/1993
2
WEIDENHAUPT, HERMANN-JOSEF
Exec Dt:
07/27/1993
3
KELBCH, STEFAN
Exec Dt:
07/21/1993
4
ENGELS, HANS-WILHELM
Exec Dt:
07/26/1993
Assignee
1
BAYER AG
KONZERNVERWALTUNG RP
PATENTE KONZERN
D-51368 LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6140427
NONE
08124617
Correspondence name and address
ROBERT G. MCMORROW, JR.
CONNOLLY & HUTZ
P.O. BOX 2207
WILMINGTON, DE 19899
Assignment: 2
Reel/Frame:008735/0272   Pages: 2
Recorded: 10/03/1997
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SUMNER, ANTHONY
Exec Dt:
07/18/1997
2
KELBCH, STEFAN
Exec Dt:
07/18/1997
3
VERBIEST, ALBERT
Exec Dt:
07/24/1997
Assignee
1
BAYER AG
PATENTE UND LIZENZEN
KONZERNBEREICH RP
D-51368 LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5886106
NONE
08841070
Correspondence name and address
CONNOLLY AND HUTZ
RICHARD M. BECK
P.O. BOX 2207
WILMINGTON, DE 19899
Assignment: 3
Reel/Frame:008831/0610   Pages: 2
Recorded: 09/29/1997
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHUBART, RUDIGER
Exec Dt:
07/30/1997
2
MUSCH, RUDIGER
Exec Dt:
08/20/1997
3
SUMNER, ANTHONY
Exec Dt:
08/22/1997
4
KELBCH, STEFAN
Exec Dt:
08/22/1997
Assignee
1
BAYER AG
PATENTE UND LIZENZEN
KONZERNBEREICH RP
D-51368 LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5889123
NONE
08939423
Correspondence name and address
CONNOLLY AND HUTZ
RICHARD M. BECK
P.O. BOX 2207
WILMINGTON, DE 19899
Assignment: 4
Reel/Frame:010094/0821   Pages: 2
Recorded: 07/08/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SCHOLL, THOMAS
Exec Dt:
05/21/1999
2
EISELE, ULRICH
Exec Dt:
06/11/1999
3
TRIMBACH, JURGEN
Exec Dt:
06/02/1999
4
KELBCH, STEFAN
Exec Dt:
06/02/1999
Assignee
1
BAYER AKTIENGESELLSCHAFT
PATENT UND LIZENZEN
KONZERNBEREICH RP
D-51368 LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6252008
NONE
09350261
Correspondence name and address
BAYER CORPORATION
NOLAND J. CHEUNG
PATENT DEPARTMENT
100 BAYER ROAD
PITTSBURGH, PA 15205-9741
Assignment: 5
Reel/Frame:020552/0416   Pages: 4
Recorded: 02/25/2008
Attorney Dkt #:P001 00137
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KELBCH, STEFAN
Exec Dt:
10/09/2007
2
VARNHORN, KAY
Exec Dt:
10/10/2007
3
ISENBERG-SCHULZ, OLAF
Exec Dt:
10/12/2007
4
FRENZEL, ULRICH
Exec Dt:
10/17/2007
5
ISMEIER, JURGEN
Exec Dt:
10/27/2007
Assignee
1
LANXESS DEUTSCHLAND GMBH
D-51369
LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20080073815
11895963
Correspondence name and address
JENNIFER R. SENG
111 RIDC PARK WEST DRIVE
LAW & INTELLECTUAL PROPERTY DEPARTMENT
PITTSBURGH, PA 15275-1112
Assignment: 6
Reel/Frame:022234/0345   Pages: 4
Recorded: 02/10/2009
Attorney Dkt #:P001 00300
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ROOS, ANDREAS
Exec Dt:
10/27/2008
2
MEZGER, MARTIN
Exec Dt:
10/27/2008
3
MAGG, HANS
Exec Dt:
10/27/2008
4
KELBCH, STEFAN
Exec Dt:
10/27/2008
5
HAIDER, JOACHIM
Exec Dt:
10/27/2008
6
BERGMANN, GERD
Exec Dt:
10/27/2008
Assignee
1
LANXESS DEUTSCHLAND GMBH
D-51369
LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8552097
US20090163631
12275292
Correspondence name and address
JENNIFER R. SENG
111 RIDC PARK WEST DRIVE
LAW & INTELLECTUAL PROPERTY DEPARTMENT
PITTSBURGH, PA 15275-1112
Assignment: 7
Reel/Frame:024373/0717   Pages: 8
Recorded: 05/12/2010
Attorney Dkt #:P001 00336
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KELBCH, STEFAN
Exec Dt:
12/31/2009
2
LA ROSA, MANUEL
Exec Dt:
03/29/2010
3
HOCH, MARTIN
Exec Dt:
12/31/2009
Assignee
1
LANXESS DEUTSCHLAND GMBH
D-51369
LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20100222510
12630120
Correspondence name and address
NICANOR A. KOHNCKE
111 RIDC PARK WEST DRIVE
PITTSBURGH, PA 15275-1112
Assignment: 8
Reel/Frame:028934/0407   Pages: 7
Recorded: 09/11/2012
Attorney Dkt #:P001 00336N
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KELBCH, STEFAN
Exec Dt:
12/31/2009
2
LAROSA, MANUEL
Exec Dt:
03/29/2010
3
HOCH, MARTIN
Exec Dt:
12/31/2009
Assignee
1
LANXESS DEUTSCHLAND GMBH
D-51369
LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20100222510
12630120
Correspondence name and address
NICANOR A. KOHNCKE
111 RIDC PARK WEST DRIVE
PITTSBURGH, PA 15275-1112
Assignment: 9
Reel/Frame:028960/0375   Pages: 7
Recorded: 09/14/2012
Attorney Dkt #:P001 00336N
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KELBCH, STEFAN
Exec Dt:
12/31/2009
2
LAROSA, MANUEL
Exec Dt:
03/29/2010
3
HOCH, MARTIN
Exec Dt:
12/31/2009
Assignee
1
LANXESS DEUTSCHLAND GMBH
D-51369
LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20110172350
13070813
Correspondence name and address
NICANOR A. KOHNCKE
111 RIDC PARK WEST DRIVE
PITTSBURGH, PA 15275-1112
Assignment: 10
Reel/Frame:028074/0582   Pages: 8
Recorded: 04/19/2012
Attorney Dkt #:P001 00411USPCT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ROOS, ANDREAS
Exec Dt:
02/07/2012
2
HERRMANN, MICHAEL
Exec Dt:
02/03/2012
3
KALKOFEN, RAINER
Exec Dt:
02/07/2012
4
KELBCH, STEFAN
Exec Dt:
02/07/2012
5
FROMMONT, HANS-JURGEN
Exec Dt:
02/03/2012
6
BERGMANN, GERD
Exec Dt:
02/07/2012
7
TAPPE, RALF
Exec Dt:
03/14/2012
Assignee
1
LANXESS DEUTSCHLAND GMBH
D-51369
LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20120190766
13389006
Correspondence name and address
LANXESS CORPORATION
111 RIDC PARK WEST DRIVE
LAW & INTELLECTUAL PROPERTY DEPT.
PITTSBURGH, PA 15275-1112
Assignment: 11
Reel/Frame:034125/0549   Pages: 5
Recorded: 11/07/2014
Attorney Dkt #:P001 00531
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KELBCH, STEFAN
Exec Dt:
10/09/2014
2
ISENBURG-SCHULZ, OLAF
Exec Dt:
10/01/2014
Assignee
1
LANXESS DEUTSCHLAND GMBH
D-50569
COLOGNE, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20140370299
14363019
Correspondence name and address
JENNIFER R. SENG
111 RIDC PARK WEST DRIVE
LAW & INTELLECTUAL PROPERTY DEPARTMENT
PITTSBURGH, PA 15275-1112

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