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Patent Assignment Assignor Details
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Assignor Name : SPRENGER, STEPHAN
Total Assignments: 10
Assignment: 1
Reel/Frame:011547/0012   Pages: 2
Recorded: 02/02/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SPRENGER, STEPHAN
Exec Dt:
12/11/2000
2
UTZ, RAINER
Exec Dt:
12/11/2000
3
CIESIELSKI, MICHAEL
Exec Dt:
12/18/2000
4
DOERING, MANFRED
Exec Dt:
12/12/2000
Assignee
1
SCHILL & SEILACHER (GMBH & CO.)
MOORFLEETER STRASSE 28
D-22113 HAMBURG, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6555227
US20010014706
09776273
Correspondence name and address
COLLARD & ROE, P.C.
EDWARD R. FREEDMAN
1077 NORTHERN BOULEVARD
ROSLYN, NY 11576
Assignment: 2
Reel/Frame:016351/0058   Pages: 17
Recorded: 06/16/2005
Attorney Dkt #:FI-50PCT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SPRENGER, STEPHAN
Exec Dt:
06/19/2004
2
CIESIELSKI, MICHAEL
Exec Dt:
06/19/2004
3
KOLLANN, CARSTEN
Exec Dt:
06/19/2004
4
DORING, MANFRED
Exec Dt:
06/19/2004
Assignee
1
FORSCHUNGSZENTRUM KARLSRUHE GMBH
WEBERSTR. 5
76133 KARLSRUHE, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7115765
US20050176983
10505201
Correspondence name and address
FRIEDRICH KUEFFNER
317 MADISON AVENUE
NEW YORK, NY 10017
Assignment: 3
Reel/Frame:016351/0412   Pages: 18
Recorded: 06/16/2005
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SPRENGER, STEPHAN
Exec Dt:
06/19/2004
2
CLESIELSKI, MICHAEL
Exec Dt:
06/19/2004
3
KOLLANN, CARSTEN
Exec Dt:
06/19/2004
4
DORING, MANFRED
Exec Dt:
06/19/2004
Assignee
1
FORSCHUNGSZENTRUM KARLSRUHE GMBH
WEBERSTR. 5
76133 KARLSRUHE, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7115765
US20050176983
10505201
Correspondence name and address
FRIEDRICH KUEFFNER
317 MADISON AVENUE
NEW YORK, NY 10017
Assignment: 4
Reel/Frame:018536/0950   Pages: 2
Recorded: 08/24/2006
Attorney Dkt #:GLAWE-10040
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
EGER, CHRISTIAN
Exec Dt:
07/28/2006
2
SPRENGER, STEPHAN
Exec Dt:
07/28/2006
Assignee
1
HANSE CHEMIE AG
CHARLOTTENBURGER STRASSE 9
GEESTHACHT, GERMANY 21502
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9175145
US20070191556
10548919
Correspondence name and address
DAVID A. CASIMIR
MEDLEN & CARROLL, LLP
101 HOWARD STREET, SUITE 350
SAN FRANCISCO, CALIFORNIA 94105
Assignment: 5
Reel/Frame:023923/0289   Pages: 2
Recorded: 02/10/2010
Attorney Dkt #:GLAWE-14330
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
EGER, CHRISTIAN
Exec Dt:
07/29/2009
2
SPRENGER, STEPHAN
Exec Dt:
07/29/2009
Assignee
1
HANSE CHEMIE AG
CHARLOTTENBURGER STRASSE 9
GEESTHACHT, GERMANY 21502
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20090298987
11662618
Correspondence name and address
CASIMIR JONES, S.C.
2275 DEMING WAY
SUITE 310
MIDDLETON, WI 53562
Assignment: 6
Reel/Frame:035231/0691   Pages: 2
Recorded: 03/23/2015
Attorney Dkt #:GLAWE-14330/US-2/CON
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
EGER, CHRISTIAN
Exec Dt:
07/29/2009
2
SPRENGER, STEPHAN
Exec Dt:
07/29/2009
Assignee
1
HANSE CHEMIE AG
CHARLOTTENBERGER STRASSE 9
GEESTHACHT, GERMANY 21502
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20150133597
14601549
Correspondence name and address
MARY ANN D. BROW
2275 DEMING WAY, STE. 310
MADISON, WI 53562
Assignment: 7
Reel/Frame:025006/0378   Pages: 3
Recorded: 09/17/2010
Attorney Dkt #:SPRENGER
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
SPRENGER, STEPHAN
Exec Dt:
08/11/2010
Assignee
1
NANORESINS AG
CHARLOTTENBURGER STRASSE 9
21502 GEESTHACHT, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9102778
US20110060105
12809918
Correspondence name and address
HENRY M FEIEREISEN LLC
708 THIRD AVENUE
SUITE 1501
NEW YORK, NY 10017
Assignment: 8
Reel/Frame:043438/0411   Pages: 5
Recorded: 08/29/2017
Attorney Dkt #:506064US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SPRENGER, STEPHAN
Exec Dt:
04/06/2017
2
NAUMANN, MATTHIAS
Exec Dt:
04/03/2017
Assignee
1
EVONIK DEGUSSA GMBH
RELLINGHAUSER STRASSE 1-11
ESSEN, GERMANY 45128
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10422074
US20180030648
15554367
Correspondence name and address
OBLON, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 9
Reel/Frame:043438/0735   Pages: 5
Recorded: 08/29/2017
Attorney Dkt #:506024US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SPRENGER, STEPHAN
Exec Dt:
04/06/2017
2
NAUMANN, MATTHIAS
Exec Dt:
04/03/2017
Assignee
1
EVONIK DEGUSSA GMBH
RELLINGHAUSER STRASSE 1-11
ESSEN, GERMANY 45128
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10479726
US20180044233
15554374
Correspondence name and address
OBLON, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 10
Reel/Frame:063949/0504   Pages: 5
Recorded: 06/14/2023
Attorney Dkt #:005317USPCT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SPRENGER, STEPHAN
Exec Dt:
03/31/2023
2
BALTHASAR, JACLYN
Exec Dt:
03/31/2023
Assignee
1
EVONIK OPERATIONS GMBH
RELLINGHAUSER STRASSE 1-11
ESSEN, GERMANY 45128
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20240026059
18257435
Correspondence name and address
GRUNEBERG AND MYERS PLLC
1775 TYSONS BLVD
5TH FLOOR
TYSONS, VA 22102

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