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Patent Assignment Assignor Details
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Assignor Name : WITKOWSKI, REINER
Total Assignments: 4
Assignment: 1
Reel/Frame:029855/0442   Pages: 8
Recorded: 02/22/2013
Attorney Dkt #:15778-00439
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZASTROW, ALFRED
Exec Dt:
09/28/2012
2
WITKOWSKI, REINER
Exec Dt:
09/30/2012
3
WERNER, RALF
Exec Dt:
10/17/2012
4
KUREK, GERALD
Exec Dt:
10/25/2012
5
RISCHE, THORSTEN
Exec Dt:
11/27/2012
6
AVTOMONOV, EVGENY
Exec Dt:
10/08/2012
7
KRAUS, HARALD
Exec Dt:
10/15/2012
8
PEERLINGS, HENRICUS
Exec Dt:
09/29/2012
Assignee
1
BAYER INTELLECTUAL PROPERTY GMBH
ALFRED-NOBEL-STRASSE 10
MONHEIM, GERMANY 40789
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9206331
US20130144007
13640986
Correspondence name and address
GEOFFREY A. ZELLEY
1007 NORTH ORANGE STREET
WILMINGTON, DE 19801
Assignment: 2
Reel/Frame:033827/0929   Pages: 4
Recorded: 09/26/2014
Attorney Dkt #:14069-00528-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
AVTOMONOV, EVGENY
Exec Dt:
03/29/2014
2
HENNINGER, BJOERN
Exec Dt:
03/22/2014
3
RUHLAND, MATTHIAS
Exec Dt:
03/21/2014
4
WITKOWSKI, REINER
Exec Dt:
03/26/2014
5
BACHMANN, ROLF
Exec Dt:
03/27/2014
Assignee
1
BAYER INTELLECTUAL PROPERTY GMBH
ALFRED-NOBEL-STR. 10
MONHEIM AM RHEIN, GERMANY 40789
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20150051337
14344427
Correspondence name and address
DRINKER BIDDLE & REATH LLP
222 DELAWARE AVENUE
SUITE 1410
WILMINGTON, DE 19801
Assignment: 3
Reel/Frame:044637/0311   Pages: 8
Recorded: 01/17/2018
Attorney Dkt #:074023-0774-US-572808
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GRABLOWITZ, HANS GEORG
Exec Dt:
12/13/2017
2
PROSS, ALEXANDER
Exec Dt:
12/19/2017
3
WITKOWSKI, REINER
Exec Dt:
12/19/2017
4
BREUER, HOLGER
Exec Dt:
12/28/2017
5
GESTERMANN, SVEN
Exec Dt:
12/19/2017
6
HAHN, CHRISTIAN JOACHIM
Exec Dt:
12/19/2017
7
SCHUBERT, STEPHAN
Exec Dt:
12/19/2017
8
RITTER, JOACHIM
Exec Dt:
12/20/2017
Assignee
1
COVESTRO DEUTSCHLAND AG
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10752727
NONE
15743342
Correspondence name and address
DRINKER BIDDLE & REATH LLP (WM)
222 DELAWARE AVENUE, STE. 1410
WILMINGTON, 19801-1621 UNITED STATES
Assignment: 4
Reel/Frame:052152/0305   Pages: 7
Recorded: 03/18/2020
Attorney Dkt #:2017P30086WOUS
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GRESZTA-FRANZ, DOROTA
Exec Dt:
11/13/2019
2
DRUMM, CHRISTIAN
Exec Dt:
11/13/2019
3
MORBACH, JAN
Exec Dt:
12/02/2019
4
WITKOWSKI, REINER
Exec Dt:
11/16/2019
Assignee
1
COVESTRO DEUTSCHLAND AG
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10968165
US20200223787
16648366
Correspondence name and address
COVESTRO LLC
1 COVESTRO CIRCLE
PITTSBURGH, PA 15205

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