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 : BUECHNER, JOERG
Total Assignments: 21
Assignment: 1
Reel/Frame:013208/0363   Pages: 2
Recorded: 08/12/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GANSTER, OTTO
Exec Dt:
06/28/2002
2
KLEIN, GERHARD
Exec Dt:
07/02/2002
3
BUECHNER, JOERG
Exec Dt:
07/01/2002
4
LUCAS, HEINZ-WERNER
Exec Dt:
07/02/2002
5
MATUSSEK, ANJA
Exec Dt:
06/28/2002
Assignee
1
BAYER AKTIENGESELLSCHAFT
D-51368 LEVERKUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20030119976
10217237
Correspondence name and address
BAYER CORPPRATION
DONNA J. VEATCH
100 BAYER ROAD
PITTSBURGH, PA 15205-9741
Assignment: 2
Reel/Frame:020731/0974   Pages: 3
Recorded: 04/01/2008
Attorney Dkt #:15778*60
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BUECHNER, JOERG
Exec Dt:
01/09/2008
2
GUERTLER, CHRISTOPH
Exec Dt:
01/10/2008
3
PIRES, RAUL
Exec Dt:
02/21/2008
4
HENNING, WOLFGANG
Exec Dt:
01/09/2008
5
ARNDT, WOLFGANG
Exec Dt:
01/09/2008
Assignee
1
BAYER MATERIALSCIENCE AG
PATENTS & LICENSING BUILDING Q 18
LEVERKUSEN, GERMANY 51368
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20080171208
12001158
Correspondence name and address
ASHLEY I. PEZZNER
1007 NORTH ORANGE STREET
WILMINGTON, DE 19899
Assignment: 3
Reel/Frame:023133/0920   Pages: 3
Recorded: 08/24/2009
Attorney Dkt #:14069-00232-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
PUDLEINER, HEINZ
Exec Dt:
09/01/2008
2
BUECHNER, JOERG
Exec Dt:
09/03/2008
3
YESILDAG, MEHMET-CENGIZ
Exec Dt:
09/03/2008
4
MEYER, KLAUS
Exec Dt:
09/04/2008
5
KRAUS, HARALD
Exec Dt:
09/22/2008
Assignee
1
BAYER MATERIALSCIENCE AG
PATENTS & LICENSING
BUILDING Q 18
LEVERKUSEN, GERMANY 51368
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20090123757
12269180
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: 4
Reel/Frame:026232/0423   Pages: 2
Recorded: 05/05/2011
Attorney Dkt #:15778-00387
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BLUM, HARALD
Exec Dt:
03/03/2011
2
BUECHNER, JOERG
Exec Dt:
02/25/2011
3
HENNING, WOLFGANG
Exec Dt:
03/26/2011
Assignee
1
BAYER MATERIALSCIENCE AG
BUILDING Q 18
PATENTS & LICENSING
LEVERKUSEN, GERMANY 51368
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20110244228
13127924
Correspondence name and address
MATHEW W. HAMMERSLEY
P O BOX 2207
WILMINGTON, DE 19899
Assignment: 5
Reel/Frame:026297/0508   Pages: 3
Recorded: 05/18/2011
Attorney Dkt #:15778-00391-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LOEWE, REINHARD
Exec Dt:
03/21/2011
2
KRUEGER, PER
Exec Dt:
03/21/2011
3
KNEBEL, MICHAEL
Exec Dt:
03/22/2011
4
EHREKE, JENS
Exec Dt:
03/21/2011
5
PUDLEINER, HEINZ
Exec Dt:
02/28/2011
6
YESILDAG, MEHMET-CENGIZ
Exec Dt:
03/07/2011
7
MEYER, KLAUS
Exec Dt:
03/02/2011
8
POPHUSEN, DIRK
Exec Dt:
03/02/2011
9
BUECHNER, JOERG
Exec Dt:
03/08/2011
Assignee
1
BAYER MATERIALSCIENCE AG
PATENTS & LICENSING
BUILDING Q 18
LEVERKUSEN, GERMANY D-67056
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8911851
US20110274883
13125077
Correspondence name and address
DAVID M. MORSE
1007 NORTH ORANGE STREET
WILMINGTON, DE 19801
Assignment: 6
Reel/Frame:028248/0678   Pages: 2
Recorded: 05/22/2012
Attorney Dkt #:15778-00421
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BUECHNER, JOERG
Exec Dt:
03/27/2012
2
ACHTEN, DIRK
Exec Dt:
03/26/2012
3
KRAUS, HARALD
Exec Dt:
03/28/2012
4
ARNDT, WOLFGANG
Exec Dt:
03/27/2012
Assignee
1
BAYER MATERIALSCIENCE AG
ALFRED-NOBEL-STR. 50
MONHEIM, GERMANY 40789
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8846198
US20120225302
13503886
Correspondence name and address
MATTHEW W. HAMMERSLEY
P O BOX 2207
WILMINGTON, DE 19899
Assignment: 7
Reel/Frame:029416/0029   Pages: 2
Recorded: 12/06/2012
Attorney Dkt #:14069-00445
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
AVTOMONOV, EVGENY
Exec Dt:
09/19/2012
2
KRAUS, HARALD
Exec Dt:
09/25/2012
3
DOERR, SEBASTIAN
Exec Dt:
09/11/2012
4
ACHTEN, DIRK
Exec Dt:
09/29/2012
5
BUECHNER, JOERG
Exec Dt:
09/26/2012
Assignee
1
BAYER INTELLECTUAL PROPERTY GMBH
ALFRED-NOBEL-STRASSE 10
---
MONHEIM, GERMANY 40789
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9353221
US20130143458
13638333
Correspondence name and address
CONNOLLY BOVE LODGE & HUTZ LLP
1007 NORTH ORANGE STREET
WILMINGTON, DE 19801
Assignment: 8
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: 9
Reel/Frame:030412/0436   Pages: 3
Recorded: 05/14/2013
Attorney Dkt #:14069-00478-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
OHWADA, TAKAHIKO
Exec Dt:
03/04/2013
2
BUECHNER, JOERG
Exec Dt:
02/28/2013
3
MUNDSTOCK, HOLGER
Exec Dt:
03/07/2013
Assignee
1
BAYER INTELLECTUAL PROPERTY GMBH
ALFRED-NOBEL-STRASSE 10
MONHEIM, GERMANY 40789
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9108357
US20130236719
13885287
Correspondence name and address
CLAUDIA SCHULTZE
P O BOX 2207
WILMINGTON, DE 19899-2207
Assignment: 10
Reel/Frame:030374/0198   Pages: 2
Recorded: 05/08/2013
Attorney Dkt #:14069-00470-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BUECHNER, JOERG
Exec Dt:
03/14/2013
2
KRAUS, HARALD
Exec Dt:
03/18/2013
3
NAZARAN, PANTEA
Exec Dt:
04/08/2013
4
WINTERMANTEL, MATTHIAS
Exec Dt:
03/15/2013
Assignee
1
BAYER INTELLECTUAL PROPERTY GMBH
ALFRED-NOBEL-STRASSE 10
MONHEIM, GERMANY 40789
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9321939
US20130220543
13823335
Correspondence name and address
CLAUDIA SCHULTZE
P O BOX 2207
WILMINGTON, DE 19899-2207
Assignment: 11
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: 12
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: 13
Reel/Frame:050850/0571   Pages: 9
Recorded: 10/29/2019
Attorney Dkt #:2015P30081WOUS
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ACHTEN, DIRK
Exec Dt:
08/09/2019
2
BUESGEN, THOMAS
Exec Dt:
08/28/2019
3
FAECKE, THOMAS
Exec Dt:
08/12/2019
4
METTMANN, BETTINA
Exec Dt:
08/09/2019
5
BUECHNER, JOERG
Exec Dt:
09/18/2019
6
LAAS, HANS-JOSEF
Exec Dt:
08/07/2019
7
LIU, TING
Exec Dt:
08/09/2019
Assignee
1
COVESTRO DEUTSCHLAND AG
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20200055235
16609247
Correspondence name and address
COVESTRO LLC
1 COVESTRO CIRCLE
PITTSBURGH, PA 15205
Assignment: 14
Reel/Frame:052838/0161   Pages: 11
Recorded: 06/04/2020
Attorney Dkt #:2017P30146WOUS
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BUECHNER, JOERG
Exec Dt:
04/09/2020
2
LUDEWIG, MICHAEL
Exec Dt:
04/08/2020
3
AVTOMONOV, EVGENY
Exec Dt:
04/09/2020
4
MELCHIORS, MARTIN
Exec Dt:
05/18/2020
Assignee
1
COVESTRO DEUTSCHLAND AG
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10882942
US20200385508
16769756
Correspondence name and address
COVESTRO LLC
1 COVESTRO CIRCLE
PITTSBURGH, PA 15205
Assignment: 15
Reel/Frame:054824/0194   Pages: 6
Recorded: 01/06/2021
Attorney Dkt #:2018P30083WOUS
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ACHTEN, DIRK
Exec Dt:
09/30/2020
2
BUESGEN, THOMAS
Exec Dt:
10/14/2020
3
TILLACK, JOERG
Exec Dt:
09/23/2020
4
SCHUSTER, FABIAN
Exec Dt:
09/24/2020
5
DEGIORGIO, NICOLAS
Exec Dt:
09/24/2020
6
KUENZEL, JONAS
Exec Dt:
09/28/2020
7
BUECHNER, JOERG
Exec Dt:
09/28/2020
8
ARNDT, WOLFGANG
Exec Dt:
09/23/2020
9
MELCHIORS, MARTIN
Exec Dt:
09/23/2020
10
KRAUS, HARALD
Exec Dt:
09/23/2020
Assignee
1
COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11213999
US20210252778
17258201
Correspondence name and address
COVESTRO LLC
1 COVESTRO CIRCLE
PITTSBURGH, PA 15205
Assignment: 16
Reel/Frame:054824/0295   Pages: 6
Recorded: 01/06/2021
Attorney Dkt #:2018P30084WOUS
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ACHTEN, DIRK
Exec Dt:
09/25/2020
2
BUESGEN, THOMAS
Exec Dt:
10/14/2020
3
TILLACK, JOERG
Exec Dt:
09/28/2020
4
SCHUSTER, FABIAN
Exec Dt:
09/25/2020
5
ROTT, RALF
Exec Dt:
09/29/2020
6
DEGIORGIO, NICOLAS
Exec Dt:
09/25/2020
7
KUENZEL, JONAS
Exec Dt:
09/28/2020
8
BUECHNER, JOERG
Exec Dt:
09/28/2020
9
ARNDT, WOLFGANG
Exec Dt:
09/25/2020
10
MELCHIORS, MARTIN
Exec Dt:
09/28/2020
11
KRAUS, HARALD
Exec Dt:
09/28/2020
Assignee
1
COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11247388
US20210245424
17258209
Correspondence name and address
COVESTRO LLC
1 COVESTRO CIRCLE
PITTSBURGH, PA 15205
Assignment: 17
Reel/Frame:057789/0914   Pages: 4
Recorded: 10/14/2021
Attorney Dkt #:2019P30017WOUS
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BUECHNER, JOERG
Exec Dt:
06/10/2021
2
LAAS, HANS-JOSEF
Exec Dt:
06/10/2021
3
KRAUS, HARALD
Exec Dt:
06/10/2021
4
MELCHIORS, MARTIN
Exec Dt:
06/10/2021
Assignee
1
COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20220177751
17603392
Correspondence name and address
COVESTRO LLC
1 COVESTRO CIRCLE
PITTSBURGH, PA 15205
Assignment: 18
Reel/Frame:060955/0095   Pages: 3
Recorded: 08/31/2022
Attorney Dkt #:2019P30292WOUS
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BUECHNER, JOERG
Exec Dt:
05/25/2022
2
TRINKS, RAINER
Exec Dt:
05/28/2022
3
FAIT, THOMAS
Exec Dt:
06/08/2022
4
KIRSTEIN, OLIVER
Exec Dt:
05/25/2022
Assignee
1
COVESTRO DEUTSCHLAND AG
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20230136555
17908324
Correspondence name and address
COVESTRO LLC
1 COVESTRO CIRCLE
PITTSBURGH, PA 15205
Assignment: 19
Reel/Frame:061120/0958   Pages: 4
Recorded: 09/16/2022
Attorney Dkt #:2019P30138WOUS
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BUECHNER, JOERG
Exec Dt:
05/27/2022
2
THIEBES, CHRISTOPH
Exec Dt:
05/30/2022
3
FAIT, THOMAS
Exec Dt:
06/08/2022
4
KIRSTEIN, OLIVER
Exec Dt:
06/08/2022
Assignee
1
COVESTRO DEUTSCHLAND AG
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11981115
US20230135472
17912145
Correspondence name and address
COVESTRO LLC
1 COVESTRO CIRCLE
PITTSBURGH, PA 15205
Assignment: 20
Reel/Frame:061120/0933   Pages: 3
Recorded: 09/16/2022
Attorney Dkt #:2020P30055WOUS
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
THIEBES, CHRISTOPH
Exec Dt:
06/13/2022
2
BUECHNER, JOERG
Exec Dt:
06/13/2022
3
FAIT, THOMAS
Exec Dt:
06/13/2022
4
KIRSTEIN, OLIVER
Exec Dt:
06/14/2022
Assignee
1
COVESTRO DEUTSCHLAND AG
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20230138157
17912139
Correspondence name and address
COVESTRO LLC
1 COVESTRO CIRCLE
PITTSBURGH, PA 15205
Assignment: 21
Reel/Frame:064646/0004   Pages: 4
Recorded: 08/21/2023
Attorney Dkt #:10139-2305478
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BUECHNER, JOERG
Exec Dt:
03/29/2023
2
KRAUS, HARALD
Exec Dt:
03/29/2023
3
FAIT, THOMAS
Exec Dt:
03/29/2023
4
THIEBES, CHRISTOPH
Exec Dt:
03/30/2023
Assignee
1
COVESTRO DEUTSCHLAND AG
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20240124663
18278039
Correspondence name and address
THE WEBB LAW FIRM, P.C.
ONE GATEWAY CENTER
420 FT. DUQUESNE BLVD., SUITE 1200
PITTSBURGH, PA 15222

Search Results as of: 05/24/2024 03:19 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