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Patent Assignment Assignor Details
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Assignor Name : MEYER-AHRENS, SVEN
Total Assignments: 21
Assignment: 1
Reel/Frame:007392/0660   Pages: 2
Recorded: 12/15/1994
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HAAS, PETER
Exec Dt:
10/26/1994
2
MEYER-AHRENS, SVEN
Exec Dt:
10/27/1994
3
JACOBS, GUNDOLF
Exec Dt:
10/28/1994
Assignee
1
BAYER AKTIENGESELLSCHAFT KONZERNVERWALTUNG RP PATENTABTEILUNG
51368
LEVERKUSEN,, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5459171
NONE
08356611
Correspondence name and address
LYNDANNE M. WHALEN
MILES INC.
PATENT DEPARTMENT, MOBAY ROAD
PITTSBURGH, PA 15205
Assignment: 2
Reel/Frame:013021/0311   Pages: 4
Recorded: 06/18/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MEYER-AHRENS, SVEN
Exec Dt:
04/17/2002
2
MATWICZYK, THOMAS J.
Exec Dt:
05/13/2002
3
LEE, BIN
Exec Dt:
05/16/2002
4
BLASZKIEWICZ, MICHAEL A.
Exec Dt:
05/16/2002
5
GUARNIERI, WALTER
Exec Dt:
05/16/2002
Assignees
1
BAYER AKTIENGESELLSCHAFT
D-51368 LEVERKUSEN, GERMANY
2
BAYER CORPORATION
100 BAYER ROAD
PITTSBURGH, PENNSYLVANIA 15205
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6773756
US20030180500
10101779
Correspondence name and address
BAYER CORP
JENNIFER R. SENG
PATENT DEPT.
100 BAYER ROAD
PITTSBURGH PA 15205-9741
Assignment: 3
Reel/Frame:017522/0779   Pages: 3
Recorded: 02/03/2006
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DREIER, THORSTEN
Exec Dt:
03/14/2005
2
ROERS, ROLF
Exec Dt:
03/01/2005
3
GOSSNER, MATTHAUS
Exec Dt:
03/02/2005
4
MEYER-AHRENS, SVEN
Exec Dt:
03/02/2005
Assignee
1
BAYER MATERIALSCIENCE AG
51368 LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20050159500
11032434
Correspondence name and address
LYNDANNE M. WHALEN
BAYER MATERIALSCIENCE LLC
PATENT DEPARTMENT
100 BAYER ROAD
PITTSBURGH, PA 15205-9741
Assignment: 4
Reel/Frame:017309/0092   Pages: 3
Recorded: 12/06/2005
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MEYER-AHRENS, SVEN
Exec Dt:
11/11/2005
2
STEINBORN, KLAUS
Exec Dt:
11/11/2005
3
NAUJOKS, MANFRED
Exec Dt:
11/11/2005
Assignee
1
BAYER MATERIALSCIENCE AG
51368 LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20060084710
11252149
Correspondence name and address
JOHN E. MROZINSKI, JR., BAYER
MATERIAL SCIENCE LLC
PATENT DEPARTMENT
100 BAYER ROAD
PITTSURGH, PA 15205-9721
Assignment: 5
Reel/Frame:020380/0875   Pages: 3
Recorded: 12/18/2007
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HAAS, PETER
Exec Dt:
11/19/2007
2
KLESCZEWSKI, BERT
Exec Dt:
11/20/2007
3
MEYER-AHRENS, SVEN
Exec Dt:
11/21/2007
Assignee
1
BAYER MATERIALSCIENCE AG
51368 LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20080167394
12002603
Correspondence name and address
BAYER MATERIALSCIENCE LLC
100 BAYER ROAD
PITTSBURGH, PA 15205-9741
Assignment: 6
Reel/Frame:025162/0508   Pages: 2
Recorded: 10/19/2010
Attorney Dkt #:16352-00002-us
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MEYER-AHRENS, SVEN
Exec Dt:
01/05/2009
2
MALER-RICHTER, ANDREA
Exec Dt:
01/13/2009
3
NAUJOKS, MANFRED
Exec Dt:
01/15/2009
4
MICHAELIS, THOMAS
Exec Dt:
01/19/2009
5
MURATOVIC, SEMKA
Exec Dt:
01/22/2009
Assignee
1
BAYER MATERIALSCIENCE AG
LEVERKUSEN, GERMANY 51368
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8323788
US20090208727
12370803
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: 7
Reel/Frame:022344/0586   Pages: 4
Recorded: 03/04/2009
Attorney Dkt #:16293-00001-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ROERS, ROLF
Exec Dt:
01/07/2009
2
TRIOULEYRE, SEBASTIEN
Exec Dt:
01/21/2009
3
MEYER-AHRENS, SVEN
Exec Dt:
01/09/2009
4
SCHNEIDER, RALPH
Exec Dt:
02/17/2009
5
MURATOVIC, SEMKA
Exec Dt:
02/17/2009
6
KLUENTER, HANS JOHANN
Exec Dt:
02/10/2009
Assignee
1
BAYER MATERIALSCIENCE AG
PATENTS & LICENSING
BUILDING Q 18
LEVERKUSEN, GERMANY 51368
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20090155520
12251013
Correspondence name and address
CONNOLLY BOVE LODGE & HUTZ, LLP
P O BOX 2207
WILMINGTON, DE 19899
Assignment: 8
Reel/Frame:022976/0845   Pages: 2
Recorded: 07/17/2009
Attorney Dkt #:15778-00211-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HAAS, PETER
Exec Dt:
05/06/2009
2
JACOBS, GUNDOLF
Exec Dt:
05/07/2009
3
MEYER-AHRENS, SVEN
Exec Dt:
05/07/2009
Assignee
1
BAYER MATERIALSCIENCE AG
PATENTS & LICENSING
BUILDING Q 18
LEVERKUSEN, GERMANY 51368
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20090326089
12487137
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: 9
Reel/Frame:023133/0923   Pages: 2
Recorded: 08/24/2009
Attorney Dkt #:16352-00003-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KLESCZEWSKI, BERT
Exec Dt:
06/02/2009
2
TRIOULEYRE, SEBASTIEN
Exec Dt:
06/15/2009
3
GOSSNER, MATTHAUS
Exec Dt:
06/03/2009
4
MEYER-AHRENS, SVEN
Exec Dt:
06/02/2009
5
MOSBACH-ROSENBERGER, ALICE
Exec Dt:
06/02/2009
Assignee
1
BAYER MATERIALSCIENCE AG
PATENT & LICENSING
BUILDING Q 18
LEVERKUSEN, GERMANY 51368
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8183302
US20090264547
12390629
Correspondence name and address
EAMONN P. MORRISON
CONNOLLY BOVE LODGE & HUTZ LLP
1007 NORTH ORANGE STREET
P.O. BOX 2207
WILMINGTON, DELAWARE 19899-2207
Assignment: 10
Reel/Frame:024936/0277   Pages: 2
Recorded: 09/02/2010
Attorney Dkt #:15778-00262-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GOSSNER, MATTHAUS
Exec Dt:
03/16/2010
2
HAAS, PETER
Exec Dt:
03/09/2010
3
MEYER-AHRENS, SVEN
Exec Dt:
03/16/2010
4
KLESCZEWSKI, BERT
Exec Dt:
03/16/2010
Assignee
1
BAYER MATERIALSCIENCE AG
PATENTS & LICENSING
BUILDING Q 18
LEVERKUSEN, GERMANY D-51368
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20100305228
12784913
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: 11
Reel/Frame:027821/0430   Pages: 2
Recorded: 03/07/2012
Attorney Dkt #:15778-00412
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KLESCZEWSKI, BERT
Exec Dt:
10/29/2011
2
OTTEN, MANDUELA
Exec Dt:
10/25/2011
3
MEYER-AHRENS, SVEN
Exec Dt:
11/03/2011
Assignee
1
BAYER MATERIALSCIENCE AG
-----
LEVERKUSEN, GERMANY 51368
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20120108690
13382776
Correspondence name and address
EAMONN P. MORRISON
1007 N. ORANGE STREET
WILMINGTON, DE 19801
Assignment: 12
Reel/Frame:027953/0194   Pages: 3
Recorded: 03/29/2012
Attorney Dkt #:15778-00418-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HAAS, PETER
Exec Dt:
03/06/2012
2
JACOBS, GUNDOLF
Exec Dt:
03/07/2012
3
MEYER-AHRENS, SVEN
Exec Dt:
03/07/2012
Assignee
1
BAYER MATERIALSCIENCE AG
PATENTS & LICENSING
BUILDING Q 18
LEVERKUSEN, GERMANY D-51368
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20120184639
13498979
Correspondence name and address
CONNOLLY BOVE LODGE & HUTZ, LLP
1007 NORTH ORANGE STREET
WILMINGTON, DE 19801
Assignment: 13
Reel/Frame:028880/0359   Pages: 10
Recorded: 08/31/2012
Attorney Dkt #:BMS122005/MD11-06
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HAGER, STANLEY L.
Exec Dt:
05/26/2012
2
MCVEY, SUSAN
Exec Dt:
08/14/2012
3
DEPHILLIPO, GLENN
Exec Dt:
08/07/2012
4
GOSSNER, MATTHAEUS
Exec Dt:
05/08/2012
5
NAUJOKS, MANFRED
Exec Dt:
05/08/2012
6
MEYER-AHRENS, SVEN
Exec Dt:
05/08/2012
7
MARCINKOWSKY, ALAN A.E.
Exec Dt:
08/15/2012
Assignees
1
BAYER MATERIALSCIENCE LLC
100 BAYER ROAD
PITTSBURGH, PENNSYLVANIA 15205-9741
2
BAYER MATERIALSCIENCE AG
51368
LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20130289150
13456445
Correspondence name and address
BAYER MATERIALSCIENCE LLC
100 BAYER ROAD
PITTSBURGH, PA 15205-9741
Assignment: 14
Reel/Frame:030640/0815   Pages: 4
Recorded: 06/19/2013
Attorney Dkt #:15778-00458-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HAHN, NORBERT
Exec Dt:
05/11/2013
2
MEYER-AHRENS, SVEN
Exec Dt:
05/21/2013
3
JACOBS, GUNDOLF
Exec Dt:
05/27/2013
4
DOHMEN, BERND
Exec Dt:
05/16/2013
Assignee
1
BAYER INTELLECTUAL PROPERTY GMBH
ALFRED-NOBEL-STRASSE 10
MONHEIM, GERMANY 40789
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9701804
US20130261203
13885694
Correspondence name and address
CLAUDIA SCHULTZE
P O BOX 2207
WILMINGTON, DE 19899-2207
Assignment: 15
Reel/Frame:031461/0131   Pages: 4
Recorded: 10/23/2013
Attorney Dkt #:15778-00470-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
JACOBS, GUNDOLF
Exec Dt:
10/07/2013
2
MEYER-AHRENS, SVEN
Exec Dt:
10/04/2013
3
KLESCZEWSKI, BERT
Exec Dt:
10/04/2013
4
SCHULZ, ANGELIKA
Exec Dt:
10/04/2013
Assignee
1
BAYER INTELLECTUAL PROPERTY GMBH
ALFRED-NOBEL-STRASSE 10
MONHEIM, GERMANY 40789
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20140066535
14007442
Correspondence name and address
CLAUDIA SCHULTZE
P O BOX 2207
WILMINGTON, DE 19899-2207
Assignment: 16
Reel/Frame:034131/0469   Pages: 3
Recorded: 11/08/2014
Attorney Dkt #:074023-0576-US-519243
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MEYER-AHRENS, SVEN
Exec Dt:
08/28/2014
2
LINDNER, STEFAN
Exec Dt:
08/28/2014
3
KLESCZEWSKI, BERT
Exec Dt:
08/28/2014
Assignee
1
BAYER MATERIALSCIENCE AG
BUILDING Q 18
LEVERKUSEN, GERMANY 51368
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20150141542
14399597
Correspondence name and address
DRINKER BIDDLE & REATH/L. STANTON
ONE LOGAN SQUARE
SUITE 2000
PHILADELPHIA, PA 19103
Assignment: 17
Reel/Frame:036830/0199   Pages: 3
Recorded: 10/20/2015
Attorney Dkt #:074023-0611-US-525309
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
NEFZGER, HARTMUT
Exec Dt:
04/02/2015
2
KLESCZEWSKI, BERT
Exec Dt:
04/09/2015
3
MEYER-AHRENS, SVEN
Exec Dt:
04/21/2015
4
KNAUP, HARALD
Exec Dt:
04/16/2015
Assignee
1
BAYER MATERIALSCIENCE AG
ALFRED-NOBEL-STR. 10
MONHEIM AM RHEIN, GERMANY 40789
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20150299373
14437870
Correspondence name and address
DRINKER BIDDLE & REATH LLP (WM)
222 DELAWARE AVENUE, STE. 1410
WILMINGTON, DE 19801-1621
Assignment: 18
Reel/Frame:038684/0268   Pages: 7
Recorded: 05/23/2016
Attorney Dkt #:BMS111090
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HAHN, NORBERT
Exec Dt:
04/21/2015
2
MEYER-AHRENS, SVEN
Exec Dt:
04/21/2015
3
JACOBS, GUNDOLF
Exec Dt:
04/21/2015
4
LOEHR, DIRK
Exec Dt:
04/21/2015
5
CZYLWIK, DIETMAR
Exec Dt:
04/21/2015
Assignee
1
BAYER MATERIALSCIENCE AG
51368 LEVERKUSEN
LEVERKUSEN, GERMANY 51368
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20150336306
14646510
Correspondence name and address
COVESTRO LLC
1 COVESTRO CIRCLE
PITTSBURGH, PA 15205
Assignment: 19
Reel/Frame:040811/0289   Pages: 6
Recorded: 12/30/2016
Attorney Dkt #:160299PCTUSDIV/BMS101252U
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
JACOBS, GUNDOLF
Exec Dt:
11/28/2016
2
MEYER-AHRENS, SVEN
Exec Dt:
11/24/2016
3
KLESCZEWSKI, BERT
Exec Dt:
11/28/2016
4
SCHULZ, ANGELIKA
Exec Dt:
11/28/2016
Assignee
1
COVESTRO DEUTSCHLAND AG
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20160257776
15155759
Correspondence name and address
K&L GATES LLP - WILLIAM E. KUSS
210 SIXTH AVENUE
K&L GATES CENTER
PITTSBURGH, PA 15222
Assignment: 20
Reel/Frame:042335/0163   Pages: 6
Recorded: 05/11/2017
Attorney Dkt #:BMS111210US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MEYER-AHRENS, SVEN
Exec Dt:
04/10/2017
2
REITER, STEPHAN
Exec Dt:
04/11/2017
3
CAVLAN, ENGIN
Exec Dt:
03/28/2017
4
GOSSNER, MATTHÄUS
Exec Dt:
04/13/2017
Assignee
1
COVESTRO DEUTSCHLAND AG
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10563032
US20170306122
15525968
Correspondence name and address
COVESTRO LLC
1 COVESTRO CIRCLE
PITTSBURGH, PA 15205
Assignment: 21
Reel/Frame:049857/0031   Pages: 6
Recorded: 07/25/2019
Attorney Dkt #:2015P30069WOUS
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MEYER-AHRENS, SVEN
Exec Dt:
01/18/2019
2
LODDENKEMPER, TIM
Exec Dt:
02/27/2019
3
ZHANG, CHENXI
Exec Dt:
01/21/2019
4
LI, LIQIANG
Exec Dt:
01/21/2019
Assignee
1
COVESTRO DEUTSCHLAND AG
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20190153184
16321923
Correspondence name and address
COVESTRO LLC
1 COVESTRO CIRCLE
PITTSBURGH, PA 15205

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