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Patent Assignment Assignor Details
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Assignor Name : DIJKSTRA, DIRK
Total Assignments: 15
Assignment: 1
Reel/Frame:027539/0928   Pages: 7
Recorded: 01/17/2012
Attorney Dkt #:15778-00408
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BAHNMUELLER, STEFAN
Exec Dt:
09/26/2011
2
MEYER, HELMUT
Exec Dt:
09/26/2011
3
DIJKSTRA, DIRK
Exec Dt:
09/26/2011
4
HENNING, WOLFGANG
Exec Dt:
10/05/2011
5
KONING, CORNELIS EME
Exec Dt:
10/06/2011
6
VAN STEENIS, JAN HEIN
Exec Dt:
12/02/2011
7
MULDERS, STEFFAN FRANCISCUS MARJO
Exec Dt:
10/25/2011
Assignee
1
BAYER MATERIALSCIENCE AG
BUILDING Q 18
PATENTS & LICENSING
LEVERKUSEN, GERMANY 51368
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20120112133
13255931
Correspondence name and address
MATTHEW W. HAMMERSLEY
P O BOX 2207
WILMINGTON, DE 19899
Assignment: 2
Reel/Frame:029842/0319   Pages: 2
Recorded: 02/20/2013
Attorney Dkt #:14069-00454-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BUECHNER, JOERG
Exec Dt:
12/04/2012
2
KRAUS, HARALD
Exec Dt:
12/11/2012
3
NAZARAN, PANTEA
Exec Dt:
12/17/2012
4
DIJKSTRA, DIRK
Exec Dt:
12/20/2012
Assignee
1
BAYER INTELLECTUAL PROPERTY GMBH
ALFRED-NOBEL-STRASSE 10
MONHEIM, GERMANY 40789
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8980407
US20130143010
13702830
Correspondence name and address
CLAUDIA SCHULTZE
1007 N. ORANGE STREET
WILMINGTON, DE 19801
Assignment: 3
Reel/Frame:033612/0291   Pages: 5
Recorded: 08/26/2014
Attorney Dkt #:074023-0542-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WEISER, MARC-STEPHAN
Exec Dt:
05/15/2014
2
HENTSCHEL, DANIEL
Exec Dt:
07/10/2014
3
PETZOLDT, JOACHIM
Exec Dt:
06/01/2014
4
NAZARAN, PANTEA
Exec Dt:
07/04/2014
5
DOERR, SEBASTIAN
Exec Dt:
05/21/2014
6
DIJKSTRA, DIRK
Exec Dt:
07/10/2014
7
FLEMM, UTE
Exec Dt:
05/21/2014
8
HOENEL, DENNIS
Exec Dt:
05/22/2014
9
BRUDER, FRIEDRICH-KARL
Exec Dt:
06/02/2014
10
FAECKE, THOMAS
Exec Dt:
05/23/2014
11
ROELLE, THOMAS
Exec Dt:
05/22/2014
Assignee
1
BAYER INTELLECTUAL PROPERTY GMBH
ALFRED-NOBEL-STR. 10
MONHEIM, GERMANY 40789
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9195215
US20140295329
14359347
Correspondence name and address
DRINKER BIDDLE & REATH LLP (WM)
222 DELAWARE AVENUE, STE. 1410
WILMINGTON, DE 19801
Assignment: 4
Reel/Frame:044432/0542   Pages: 9
Recorded: 12/19/2017
Attorney Dkt #:COV161098US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ACHTEN, DIRK
Exec Dt:
12/08/2017
2
BÜSGEN, THOMAS
Exec Dt:
11/23/2017
3
DIJKSTRA, DIRK
Exec Dt:
11/30/2017
4
DEGIORGIO, NICOLAS
Exec Dt:
12/01/2017
5
WAGNER, ROLAND
Exec Dt:
12/01/2017
6
AKBAS, LEVENT
Exec Dt:
12/08/2017
7
REICHERT, PETER
Exec Dt:
11/22/2017
8
HÄTTIG, JÜRGEN
Exec Dt:
11/22/2017
Assignee
1
COVESTRO DEUTSCHLAND AG
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10398236
US20180070736
15701950
Correspondence name and address
COVESTRO LLC
1 COVESTRO CIRCLE
PITTSBURGH, PA 15205
Assignment: 5
Reel/Frame:048520/0921   Pages: 10
Recorded: 03/06/2019
Attorney Dkt #:074023-0814-584603
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ACHTEN, DIRK
Exec Dt:
02/01/2019
2
BUESGEN, THOMAS
Exec Dt:
02/06/2019
3
DIJKSTRA, DIRK
Exec Dt:
12/11/2018
4
DEGIORGIO, NICOLAS
Exec Dt:
02/06/2019
Assignee
1
COVESTRO DEUTSCHLAND AG
KAISER-WILHEM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11248998
US20200309656
16311008
Correspondence name and address
DRINKER BIDDLE & REATH LLP (WM)
222 DELAWARE AVENUE, STE. 1410
WILMINGTON, DE 19801-1621
Assignment: 6
Reel/Frame:048133/0928   Pages: 10
Recorded: 01/25/2019
Attorney Dkt #:074023-0825-US-585009
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ACHTEN, DIRK
Exec Dt:
01/08/2019
2
BUESGEN, THOMAS
Exec Dt:
01/08/2019
3
DIJKSTRA, DIRK
Exec Dt:
12/19/2018
4
WAGNER, ROLAND
Exec Dt:
01/08/2019
Assignee
1
COVESTRO DEUTSCHLAND AG
KERSCHENSTEINERSTRASSE 11-15
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11192293
US20190240896
16315872
Correspondence name and address
DRINKER BIDDLE & REATH LLP (WM)
222 DELAWARE AVENUE, STE. 1410
WILMINGTON, DE 19801-1621
Assignment: 7
Reel/Frame:048527/0635   Pages: 16
Recorded: 03/07/2019
Attorney Dkt #:074023-0840-587095
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ACHTEN, DIRK
Exec Dt:
02/06/2019
2
BUESGEN, THOMAS
Exec Dt:
02/06/2019
3
DIJKSTRA, DIRK
Exec Dt:
02/06/2019
4
DEGIORGIO, NICOLAS
Exec Dt:
02/06/2019
5
WAGNER, ROLAND
Exec Dt:
02/06/2019
6
AKBAS, LEVENT
Exec Dt:
02/24/2019
7
REICHERT, PETER
Exec Dt:
02/06/2019
8
BUECHNER, JOERG
Exec Dt:
02/11/2019
Assignee
1
COVESTRO DEUTSCHLAND AG
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11440242
US20190217533
16331198
Correspondence name and address
DRINKER BIDDLE & REATH LLP (WM)
222 DELAWARE AVENUE, STE. 1410
WILMINGTON, DE 19801-1621
Assignment: 8
Reel/Frame:049799/0358   Pages: 12
Recorded: 07/19/2019
Attorney Dkt #:074023-0839-US-587026
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ACHTEN, DIRK
Exec Dt:
02/12/2019
2
BUESGEN, THOMAS
Exec Dt:
02/11/2019
3
DIJKSTRA, DIRK
Exec Dt:
02/12/2019
4
DEGIORGIO, NICOLAS
Exec Dt:
02/14/2019
5
ARNDT, WOLFGANG
Exec Dt:
02/12/2019
6
AKBAS, LEVENT
Exec Dt:
03/10/2019
7
WAGNER, ROLAND
Exec Dt:
02/12/2019
8
REICHERT, PETER
Exec Dt:
02/12/2019
9
BUECHNER, JOERG
Exec Dt:
02/11/2019
Assignee
1
COVESTRO DEUTSCHLAND AG
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10926459
US20190184632
16331221
Correspondence name and address
DRINKER BIDDLE & REATH LLP (WM)
222 DELAWARE AVENUE, STE. 1410
WILMINGTON, DE 19801-1621
Assignment: 9
Reel/Frame:060105/0656   Pages: 12
Recorded: 06/06/2022
Attorney Dkt #:2016P30039WOUS
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ACHTEN, DIRK
Exec Dt:
02/12/2019
2
BÜSGEN, THOMAS
Exec Dt:
02/11/2019
3
DIJKSTRA, DIRK
Exec Dt:
02/12/2019
4
METTMANN, BETTINA
Exec Dt:
02/14/2019
5
AKBAS, LEVENT
Exec Dt:
02/11/2019
6
WAGNER, ROLAND
Exec Dt:
02/12/2019
7
KESSLER, MICHAEL
Exec Dt:
02/19/2022
Assignee
1
COVESTRO DEUTSCHLAND AG
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11472101
US20190248067
16333276
Correspondence name and address
COVESTRO LLC
1 COVESTRO CIRCLE
PITTSBURGH, PA 15205
Assignment: 10
Reel/Frame:049059/0868   Pages: 6
Recorded: 05/02/2019
Attorney Dkt #:074023-0849-588763
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ACHTEN, DIRK
Exec Dt:
04/02/2019
2
BUESGEN, THOMAS
Exec Dt:
04/07/2019
3
DIJKSTRA, DIRK
Exec Dt:
04/02/2019
4
WAGNER, ROLAND
Exec Dt:
04/07/2019
5
METTMANN, BETTINA
Exec Dt:
04/01/2019
6
DEGIORGIO, NICOLAS
Exec Dt:
04/01/2019
7
REICHERT, PETER
Exec Dt:
04/01/2019
Assignee
1
COVESTRO DEUTSCHLAND AG
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20190254439
16346916
Correspondence name and address
DRINKER BIDDLE & REATH LLP (WM)
222 DELAWARE AVENUE, STE. 1410
WILMINGTON, DE 19801-1621
Assignment: 11
Reel/Frame:063002/0981   Pages: 11
Recorded: 03/16/2023
Attorney Dkt #:10139-2300725
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ACHTEN, DIRK
Exec Dt:
08/11/2020
2
BUESGEN, THOMAS
Exec Dt:
07/28/2020
3
TOMCZYK, CHRISTOPH
Exec Dt:
07/23/2020
4
WAGNER, ROLAND
Exec Dt:
07/29/2020
5
METTMANN, BETTINA
Exec Dt:
07/23/2020
6
DIJKSTRA, DIRK
Exec Dt:
07/23/2020
7
AKBAS, LEVENT
Exec Dt:
03/15/2023
8
GUEDOU, ARNAUD
Exec Dt:
07/23/2020
Assignee
1
COVESTRO DEUTSCHLAND AG
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20190315062
16462268
Correspondence name and address
THE WEBB LAW FIRM
ONE GATEWAY CENTER
420 FT. DUQUESNE BLVD, SUITE 1200
PITTSBURGH, PA 15222
Assignment: 12
Reel/Frame:054396/0605   Pages: 14
Recorded: 11/18/2020
Attorney Dkt #:074023-0948-US-000001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HEINZ, PAUL
Exec Dt:
08/15/2020
2
ACHTEN, DIRK
Exec Dt:
08/21/2020
3
DIJKSTRA, DIRK
Exec Dt:
08/17/2020
4
HOCKE, HEIKO
Exec Dt:
08/26/2020
Assignee
1
COVESTRO DEUTSCHLAND AG
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20210214487
17056418
Correspondence name and address
FAEGRE DRINKER BIDDLE & REATH LLP (WM)
ATTN: INTELLECTUAL PROPERTY GROUP
ONE LOGAN SQUARE, SUITE 2000
PHILADELPHIA, PA 19103-6996
Assignment: 13
Reel/Frame:056044/0066   Pages: 5
Recorded: 04/26/2021
Attorney Dkt #:074025-0841-US-587112
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ACHTEN, DIRK
Exec Dt:
11/13/2020
2
BUESGEN, THOMAS
Exec Dt:
11/13/2020
3
DIJKSTRA, DIRK
Exec Dt:
11/13/2020
4
DEGIORGIO, NICOLAS
Exec Dt:
11/25/2020
5
WAGNER, ROLAND
Exec Dt:
11/13/2020
6
AKBAS, LEVENT
Exec Dt:
11/25/2020
7
REICHERT, PETER
Exec Dt:
11/13/2020
8
HAETTIG, JUERGEN
Exec Dt:
11/13/2020
Assignee
1
COVESTRO DEUTSCHLAND AG
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11910931
US20190223618
16332018
Correspondence name and address
FAEGRE DRINKER BIDDLE REATH LLP
222 DELAWARE AVE SUITE SUITE 1410
WILMINGTON, DE 19801
Assignment: 14
Reel/Frame:060037/0832   Pages: 5
Recorded: 05/27/2022
Attorney Dkt #:2018P30277WOUS
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GARSKA, BERND
Exec Dt:
02/18/2022
2
DIJKSTRA, DIRK
Exec Dt:
02/18/2022
3
WILHELM, MANFRED
Exec Dt:
03/16/2022
Assignee
1
COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20230357483
17780651
Correspondence name and address
COVESTRO LLC
1 COVESTRO CIRCLE
PITTSBURGH, PA 15205
Assignment: 15
Reel/Frame:063430/0448   Pages: 5
Recorded: 04/25/2023
Attorney Dkt #:10139-2301940
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KUEKER, PETER
Exec Dt:
01/13/2023
2
THIEBES, CHRISTOPH
Exec Dt:
01/13/2023
3
WIPPERFUERTH, UDO
Exec Dt:
02/18/2023
4
KEMPKES, JUERGEN
Exec Dt:
01/16/2023
5
DIJKSTRA, DIRK
Exec Dt:
01/28/2023
6
MUSCH, RUEDIGER
Exec Dt:
01/18/2023
Assignee
1
COVESTRO DEUTSCHLAND AG
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20240018293
18250388
Correspondence name and address
THE WEBB LAW FIRM, P.C.
ONE GATEWAY CENTER
420 FT. DUQUESNE BLVD., SUITE 1200
PITTSBURGH, PA 15222

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