skip navigationU S P T O SealUnited States Patent and Trademark Office AOTW logo
Home|Site Index|Search|Guides|Contacts|eBusiness|eBiz alerts|News|Help
Assignments on the Web > Patent Query
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 : BUCHHOLZ, SIGURD, DR.
Total Assignments: 8
Assignment: 1
Reel/Frame:021546/0616   Pages: 4
Recorded: 09/18/2008
Attorney Dkt #:100717-739 WCG
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BUCHHOLZ, SIGURD, DR.
Exec Dt:
08/14/2008
2
MICHELE, VOLKER, DR.
Exec Dt:
08/14/2008
3
MLECZKO, LESLAW, DR.
Exec Dt:
08/18/2008
4
BELLINGHAUSEN, RAINER, DR.
Exec Dt:
08/14/2008
5
WOLF, AUREL, DR.
Exec Dt:
08/15/2008
Assignee
1
BAYER MATERIALSCIENCE AG
PATENTS AND LICENSING
LEVERKUSEN, GERMANY 51368
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20090087372
12212678
Correspondence name and address
NORRIS, MCLAUGHLIN & MARCUS, P.A.
875 THIRD AVE
18TH FLOOR
NEW YORK, NY 10022
Assignment: 2
Reel/Frame:021845/0628   Pages: 4
Recorded: 11/17/2008
Attorney Dkt #:100717-740 WCG
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MEYER, HELMUT, DR.
Exec Dt:
10/01/2008
2
HOCKE, HEIKO, DR.
Exec Dt:
10/01/2008
3
WEBER, RALPH, DR.
Exec Dt:
10/01/2008
4
SCHMID, MARTIN
Exec Dt:
10/15/2008
5
BRAMER-WEGER, ELMAR, DR.
Exec Dt:
10/15/2008
6
VOETZ, MATTHIAS, DR.
Exec Dt:
10/16/2008
7
MLECZKO, LESLAW, DR.
Exec Dt:
10/17/2008
8
RUDOLF, REINER, DR.
Exec Dt:
10/22/2008
9
WOLF, AUREL, DR.
Exec Dt:
10/17/2008
10
BUCHHOLZ, SIGURD, DR.
Exec Dt:
10/12/2008
Assignee
1
BAYER MATERIALSCIENCE AG
LAW AND PATENTS
LEVERKUSEN, GERMANY 51368
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8398949
US20090124705
12208468
Correspondence name and address
NORRIS, MCLAUGHLIN & MARCUS, P.A.
875 THIRD AVE
18TH FLOOR
NEW YORK, NY 10022
Assignment: 3
Reel/Frame:023190/0315   Pages: 4
Recorded: 09/03/2009
Attorney Dkt #:100717-771 WCG
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HENNINGER, BJORN, DR.
Exec Dt:
08/13/2009
2
TRACHT, URSULA, DR
Exec Dt:
08/14/2009
3
BUCHHOLZ, SIGURD, DR.
Exec Dt:
08/13/2009
4
WILLEMS, CLAUDIA, DR.
Exec Dt:
08/17/2009
5
BACHMANN, ROLF, DR.
Exec Dt:
08/17/2009
6
LUDEWIG, MICHAEL, DR.
Exec Dt:
08/19/2009
7
FISCHER, WOLFGANG, DR.
Exec Dt:
08/24/2009
Assignee
1
BAYER TECHNOLOGY SERVICES GMBH
BUILDING Q 18
LEVERKUSEN, GERMANY D-51368
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8283488
US20100022797
12504790
Correspondence name and address
NORRIS, MCLAUGHLIN & MARCUS, P.A.
875 THIRD AVE
18TH FLOOR
NEW YORK, NY 10022
Assignment: 4
Reel/Frame:024410/0030   Pages: 3
Recorded: 05/19/2010
Attorney Dkt #:100717-801 WCG
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WOLF, AUREL, DR.
Exec Dt:
03/15/2010
2
MICHELE, VOLKER, DR.
Exec Dt:
03/11/2010
3
MLECZKO, LESLAW, DR.
Exec Dt:
03/11/2010
4
ASSMANN, JENS, DR.
Exec Dt:
03/12/2010
5
BUCHHOLZ, SIGURD, DR.
Exec Dt:
03/11/2010
Assignee
1
BAYER TECHNOLOGY SERVICES GMBH
BUILDING Q 18
LEVERKUSEN, GERMANY 51368
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20100276644
12743721
Correspondence name and address
GERSTENZANG, WILLIAM C. NORRIS MCLAUGHLI
875 THIRD AVE, 8TH FLOOR
NEW YORK, NY 10022
Assignment: 5
Reel/Frame:025729/0213   Pages: 4
Recorded: 02/01/2011
Attorney Dkt #:100717-820 WCG
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HEPPERLE, JENS, DR.
Exec Dt:
01/10/2011
2
LIESENFELDER, ULRICH
Exec Dt:
01/12/2011
3
BUCHHOLZ, SIGURD, DR.
Exec Dt:
01/13/2011
4
BRAEUER, WOLFGANG, DR.
Exec Dt:
01/17/2011
5
KAUFHOLD, WOLFGANG, DR.
Exec Dt:
01/17/2011
6
HAESELER, ACHIM
Exec Dt:
01/19/2011
Assignees
1
BAYER TECHNOLOGY SERVICES GMBH
BUILDING Q 18
LEVERKUSEN, GERMANY 51368
2
BAYER MATERIALSCIENCE AG
BUILDING Q 18
LEVERKUSEN, GERMANY 51368
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20110124773
12948064
Correspondence name and address
WILLIAM C. GERSTENZANG, ESQ.
NORRIS MCLAUGHLIN & MARCUS P.A.
875 THIRD AVE, 8TH FLOOR
NEW YORK, NY 10022
Assignment: 6
Reel/Frame:027447/0176   Pages: 2
Recorded: 12/27/2011
Attorney Dkt #:100717-867 WCG
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HENNINGER, BJOERN, DR.
Exec Dt:
11/18/2011
2
TRACHT, URSULA, DR.
Exec Dt:
11/24/2011
3
BUCHHOLZ, SIGURD, DR.
Exec Dt:
11/25/2011
4
WILLEMS, CLAUDIA, DR.
Exec Dt:
12/01/2011
5
BACHMANN, ROLF, DR.
Exec Dt:
12/01/2011
6
LUDEWIG, MICHAEL, DR.
Exec Dt:
11/22/2011
7
FISCHER, WOLFGANG, DR.
Exec Dt:
11/18/2011
Assignee
1
BAYER TECHNOLOGY SERVICES GMBH
BUILDING Q 18
LEVERKUSEN, GERMANY 51368
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20120271064
13378585
Correspondence name and address
GERSTENZANG, WILLIAM C. NORRIS MCLAUGHLI
875 THIRD AVE, 8TH FLOOR
NEW YORK, NY 10022
Assignment: 7
Reel/Frame:029152/0696   Pages: 2
Recorded: 10/18/2012
Attorney Dkt #:2923343-005000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SEVERINS, CHRISTIAN, DR.
Exec Dt:
07/03/2012
2
BUCHHOLZ, SIGURD, DR.
Exec Dt:
07/10/2012
3
TELLMANN, KILIAN, DR.
Exec Dt:
07/16/2012
4
WEIDEMANN, KLAUS
Exec Dt:
07/19/2012
5
WIESCHEMEYER, JUERGEN, DR.
Exec Dt:
07/19/2012
Assignee
1
BAYER INTELLECTUAL PROPERTY GMBH
ALFRED-NOBEL-STRASSE 10
MONHEIM, GERMANY 40789
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20120323019
13517019
Correspondence name and address
BAKER DONELSON ET AL.
920 MASSACHUSETTS AVENUE, NW
SUITE 900
WASHINGTON, DC 20001
Assignment: 8
Reel/Frame:047763/0661   Pages: 6
Recorded: 12/13/2018
Attorney Dkt #:2923343-231001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MLECZKO, LESLAW, DR.
Exec Dt:
11/28/2016
2
BUCHHOLZ, SIGURD, DR.
Exec Dt:
11/28/2016
3
BOOS, KARL-ROBERT
Exec Dt:
11/29/2016
4
FALSS, SEBASTIAN
Exec Dt:
12/10/2016
Assignee
1
BAYER AKTIENGESELLSCHAFT
KAISER-WILHELM-ALLEE 1
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11033874
US20190111406
16218649
Correspondence name and address
MCBEE MOORE WOODWARD AND VANIK IP, LLC
510 SOUTH MARKET STREET
FREDERICK, MD 21701

Search Results as of: 08/27/2025 06:56 AM
If you have any comments or questions concerning the data displayed, contact PRD / Assignments at 571-272-3350. v.2.6
Web interface last modified: August 25, 2017 v.2.6
| .HOME | INDEX| SEARCH | eBUSINESS | CONTACT US | PRIVACY STATEMENT