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Patent Assignment Assignor Details
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Assignor Name : WEIDENBACH, MEINOLF
Total Assignments: 26
Assignment: 1
Reel/Frame:015744/0390   Pages: 3
Recorded: 08/30/2004
Attorney Dkt #:252290USOX
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
05/07/2004
2
Exec Dt:
05/07/2004
3
Exec Dt:
05/07/2004
4
Exec Dt:
05/17/2004
5
Exec Dt:
05/17/2004
6
Exec Dt:
05/17/2004
Assignees
1
67056 LUDWIGSHAFEN, GERMANY
2
LEGAL DEPARTMENT
INTELLECTUAL PROPERTY SECTION
MIDLAND, MICHIGAN 48674
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10828291
Correspondence name and address
OBLON, SPIVAK, MCCLELLAND, MAIER & NEUST
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 2
Reel/Frame:015855/0440   Pages: 3
Recorded: 10/01/2004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
07/27/2004
2
Exec Dt:
07/27/2004
3
Exec Dt:
07/27/2004
4
Exec Dt:
07/27/2004
5
Exec Dt:
07/27/2004
6
Exec Dt:
07/27/2004
Assignees
1
670561 LUDWIGSHAFEN, GERMANY
2
MIDLAND, MICHIGAN 48674
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10884968
Correspondence name and address
OBLON, SPIVAK, MCCLELLAND, MAIER & NEUST
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 3
Reel/Frame:015890/0838   Pages: 3
Recorded: 10/15/2004
Attorney Dkt #:255651USOX
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
07/27/2004
2
Exec Dt:
07/27/2004
3
Exec Dt:
07/27/2004
4
Exec Dt:
07/27/2004
5
Exec Dt:
07/27/2004
6
Exec Dt:
07/27/2004
Assignees
1
67056 LUDWIGSHAFEN, GERMANY
2
MIDLAND, MICHIGAN 48674
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
10884967
Correspondence name and address
OBLON, SPIVAK, MCCLELLAND, MAIER ET AL
FREDERICK D. VASTINE
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 4
Reel/Frame:016515/0618   Pages: 4
Recorded: 05/03/2005
Conveyance: RECORD TO CORRECT THE 1ST ASSIGNEE'S ADDRESS ON AN ASSIGNMENT PREVIOUSLY RECORDED ON REEL 015855/0440.
Assignors
1
Exec Dt:
07/27/2004
2
Exec Dt:
07/27/2004
3
Exec Dt:
07/27/2004
4
Exec Dt:
07/27/2004
5
Exec Dt:
07/27/2004
6
Exec Dt:
07/27/2004
Assignees
1
67056 LUDWIGSHAFEN, GERMANY
2
INTELLECTUAL PROPERTY SECTION
MIDLAND, MICHIGAN 48674
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10884968
Correspondence name and address
OBLON, SPIVAK, MCCLELLAND, MAIER & NEUST
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 5
Reel/Frame:016430/0213   Pages: 3
Recorded: 04/05/2005
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
02/15/2005
2
Exec Dt:
02/15/2005
3
Exec Dt:
02/15/2005
4
Exec Dt:
02/04/2005
5
Exec Dt:
02/04/2005
6
Exec Dt:
02/04/2005
Assignees
1
67056 LUDWIGSHAFEN, GERMANY
2
MIDLAND, MICHIGAN 48476
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
11036051
Correspondence name and address
OBLON, SPIVAK, MCCLELLAND, MAIER ET AL
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 6
Reel/Frame:019561/0354   Pages: 4
Recorded: 07/16/2007
Attorney Dkt #:301277US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
11/09/2006
2
Exec Dt:
11/09/2006
3
Exec Dt:
11/09/2006
4
Exec Dt:
11/15/2006
5
Exec Dt:
11/15/2006
6
Exec Dt:
11/15/2006
Assignee
1
.
LUDWIGSHAFEN, GERMANY 67056
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
11631630
Correspondence name and address
OBLON, SPIVAK, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 7
Reel/Frame:019572/0762   Pages: 6
Recorded: 07/19/2007
Attorney Dkt #:301277US
Conveyance: CORRECTIVE ASSIGNMENT TO CORRECT THE 2ND ASSIGNEE'S INFORMATION PREVIOUSLY RECORDED ON REEL 019561 FRAME 0354. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT.
Assignors
1
Exec Dt:
11/09/2006
2
Exec Dt:
11/09/2006
3
Exec Dt:
11/09/2006
4
Exec Dt:
11/15/2006
5
Exec Dt:
11/15/2006
6
Exec Dt:
11/15/2006
Assignees
1
.
LUDWIGSHAFEN, GERMANY 67056
2
.
MIDLAND, MICHIGAN 48674
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
11631630
Correspondence name and address
OBLON, SPIVAK, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 8
Reel/Frame:023946/0720   Pages: 4
Recorded: 02/17/2010
Attorney Dkt #:301278US0XPCT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
11/09/2006
2
Exec Dt:
11/09/2006
3
Exec Dt:
11/09/2006
4
Exec Dt:
11/15/2006
5
Exec Dt:
11/15/2006
6
Exec Dt:
11/15/2006
Assignees
1
.
LUDWIGSHAFEN, GERMANY 67056
2
.
MIDLAND, MICHIGAN 48674
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11631843
Correspondence name and address
OBLON, SPIVAK, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 9
Reel/Frame:021176/0487   Pages: 4
Recorded: 07/01/2008
Attorney Dkt #:327983US0X PCT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
02/01/2007
2
Exec Dt:
02/12/2007
3
Exec Dt:
02/13/2007
4
Exec Dt:
02/05/2007
5
Exec Dt:
02/06/2007
6
Exec Dt:
01/15/2007
7
Exec Dt:
01/24/2007
8
Exec Dt:
01/29/2007
Assignees
1
.
LUDWIGSHAFEN, GERMANY 67056
2
.
MIDLAND, MICHIGAN 48674
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
12159404
Correspondence name and address
OBLON, SPIVAK, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 10
Reel/Frame:019639/0830   Pages: 4
Recorded: 08/02/2007
Attorney Dkt #:13156-00104-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
06/05/2007
2
Exec Dt:
06/05/2007
3
Exec Dt:
06/05/2007
4
Exec Dt:
06/12/2007
5
Exec Dt:
06/19/2007
6
Exec Dt:
06/15/2007
Assignees
1
PATENTS & SCIENTIFIC INFORMATION
CARL-BOSCH-STRASSE; GVX-C006
LUDWIGSHAFEN, GERMANY D-67056
2
1790 BLDG. WASHINGTON ST.
MIDLAND, MICHIGAN 48476
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11814110
Correspondence name and address
EAMONN P. MORRISON
THE NEMOURS BUILDING
1007 NORTH ORANGE STREET, P.O. BOX 2207
WILMINGTON, DE 19899
Assignment: 11
Reel/Frame:023585/0600   Pages: 7
Recorded: 12/01/2009
Attorney Dkt #:350421US0XPCT
Conveyance: CORRECTIVE ASSIGNMENT TO CORRECT THE EIGHTH ASSIGNOR'S DOCUMENT DATE PREVIOUSLY RECORDED ON REEL 023515 FRAME 0316. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT.
Assignors
1
Exec Dt:
07/09/2008
2
Exec Dt:
07/28/2008
3
Exec Dt:
08/26/2008
4
Exec Dt:
09/08/2008
5
Exec Dt:
08/24/2008
6
Exec Dt:
05/21/2008
7
Exec Dt:
07/07/2008
8
Exec Dt:
06/10/2008
Assignees
1
.
LUDWIGSHAFEN, GERMANY 67056
2
.
MIDLAND, MICHIGAN 48674
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
12599395
Correspondence name and address
OBLON, SPIVAK, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 12
Reel/Frame:023515/0316   Pages: 5
Recorded: 11/13/2009
Attorney Dkt #:350421US0PCT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
07/09/2008
2
Exec Dt:
07/28/2008
3
Exec Dt:
08/26/2008
4
Exec Dt:
09/08/2008
5
Exec Dt:
08/24/2008
6
Exec Dt:
05/21/2008
7
Exec Dt:
07/07/2008
8
Exec Dt:
10/06/2008
Assignees
1
.
LUDWIGSHAFEN, GERMANY 67056
2
.
MIDLAND, MICHIGAN 48674
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
12599395
Correspondence name and address
OBLON, SPIVAK, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 13
Reel/Frame:026597/0483   Pages: 7
Recorded: 07/15/2011
Attorney Dkt #:364274US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
Exec Dt:
01/07/2010
Assignee
1
AM KRONBERGER HANG 4
SCHWALBACH, GERMANY D-68524
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
12837962
Correspondence name and address
OBLON, SPIVAK ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 14
Reel/Frame:028035/0857   Pages: 5
Recorded: 04/12/2012
Attorney Dkt #:364274US0X
Conveyance: CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE PREVIOUSLY RECORDED ON REEL 026597 FRAME 0483. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT OF ASSIGNOR'S INTEREST.
Assignor
1
Exec Dt:
01/07/2010
Assignee
1
BUETZFLETHER SAND
STADE, GERMANY D-21683
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
12837962
Correspondence name and address
OBLON, SPIVAK, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 15
Reel/Frame:027227/0442   Pages: 5
Recorded: 11/15/2011
Attorney Dkt #:389292US99XPCT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
07/14/2010
2
Exec Dt:
07/26/2010
3
Exec Dt:
08/25/2010
4
Exec Dt:
07/14/2010
5
Exec Dt:
07/14/2010
6
Exec Dt:
09/24/2010
7
Exec Dt:
07/29/2010
8
Exec Dt:
07/15/2010
9
Exec Dt:
07/28/2010
10
Exec Dt:
08/30/2010
11
Exec Dt:
10/05/2010
12
Exec Dt:
05/27/2010
13
Exec Dt:
06/14/2010
Assignees
1
.
LUDWIGSHAFEN, GERMANY 67056
2
.
MIDLAND, MICHIGAN 48674
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
13319803
Correspondence name and address
OBLON, SPIVAK, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 16
Reel/Frame:042333/0762   Pages: 4
Recorded: 04/25/2017
Attorney Dkt #:475704US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
03/26/2014
2
Exec Dt:
03/27/2014
3
Exec Dt:
03/27/2014
Assignee
1
BUETZFLETHER SAND
STADE, GERMANY D-21683
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
15246028
Correspondence name and address
OBLON, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 17
Reel/Frame:038214/0871   Pages: 3
Recorded: 04/07/2016
Attorney Dkt #:465212US106XPCT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
05/21/2014
2
Exec Dt:
05/20/2014
Assignee
1
BUETZFLETHER SAND
STADE, GERMANY D-21683
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
14906852
Correspondence name and address
OBLON, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 18
Reel/Frame:039127/0913   Pages: 3
Recorded: 07/12/2016
Attorney Dkt #:466285US106XPCT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
05/21/2014
2
Exec Dt:
05/20/2014
Assignee
1
BUETZFLETHER SAND
STADE, GERMANY D-21683
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
14907998
Correspondence name and address
OBLON, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 19
Reel/Frame:041596/0562   Pages: 5
Recorded: 03/16/2017
Attorney Dkt #:466155US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
05/20/2014
2
Exec Dt:
06/24/2014
Assignee
1
BUETZFLETHER SAND
STADE, GERMANY D-21683
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
14908042
Correspondence name and address
OBLON, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 20
Reel/Frame:044029/0503   Pages: 4
Recorded: 11/03/2017
Attorney Dkt #:502796US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
01/23/2015
2
Exec Dt:
01/19/2015
3
Exec Dt:
01/18/2015
Assignee
1
BUETZFLETHER SAND
STADE, GERMANY D-21683
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
15521924
Correspondence name and address
OBLON, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 21
Reel/Frame:047691/0813   Pages: 3
Recorded: 11/30/2018
Attorney Dkt #:506111US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
04/27/2015
2
Exec Dt:
04/27/2015
Assignee
1
BUETZFLETHER SAND
STADE, GERMANY D-21683
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
15550581
Correspondence name and address
OBLON, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 22
Reel/Frame:049402/0619   Pages: 2
Recorded: 06/06/2019
Attorney Dkt #:519279US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
09/29/2016
2
Exec Dt:
09/29/2016
3
Exec Dt:
09/25/2016
Assignee
1
BUETZFLETHER SAND
STADE, GERMANY D-21683
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
16318221
Correspondence name and address
OBLON, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 23
Reel/Frame:049361/0387   Pages: 2
Recorded: 06/04/2019
Attorney Dkt #:518692US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
11/28/2017
2
Exec Dt:
11/22/2017
Assignee
1
BUETZFLETHER SAND
STADE, GERMANY D-21683
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
16315345
Correspondence name and address
OBLON, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 24
Reel/Frame:061101/0173   Pages: 3
Recorded: 09/15/2022
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
Exec Dt:
01/07/2021
Assignee
1
BUETZFLETHER SAND
STADE, GERMANY D-21683
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
17911673
Correspondence name and address
FAEGRE DRINKER BIDDLE & REATH LLP (WM)
ATTN: INTELLECTUAL PROPERTY GROUP
ONE LOGAN SQURE, SUITE 2000
PHILADELPHIA, PA 19103
Assignment: 25
Reel/Frame:062219/0240   Pages: 3
Recorded: 12/28/2022
Attorney Dkt #:074040-US-000031
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
Exec Dt:
01/07/2021
Assignee
1
BUETZFLETHER SAND
STADE, GERMANY D-21683
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
18013272
Correspondence name and address
FAEGRE DRINKER BIDDLE & REATH LLP (WM)
ATTN: INTELLECTUAL PROPERTY GROUP
ONE LOGAN SQURE, SUITE 2000
PHILADELPHIA, PA 19103
Assignment: 26
Reel/Frame:063376/0713   Pages: 3
Recorded: 04/19/2023
Attorney Dkt #:074040-US-000040
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
Exec Dt:
03/09/2021
Assignee
1
BUETZFLETHER SAND
STADE, GERMANY D-21683
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
18032668
Correspondence name and address
FAEGRE DRINKER BIDDLE & REATH LLP (WM)
ATTN: INTELLECTUAL PROPERTY GROUP
ONE LOGAN SQURE, SUITE 2000
PHILADELPHIA, PA 19103

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