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Patent Assignment Assignor Details
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Assignor Name : WU, WEICHENG
Total Assignments: 5
Assignment: 1
Reel/Frame:020577/0189   Pages: 8
Recorded: 02/28/2008
Attorney Dkt #:3799.1008-000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MUELLEN, KLAUS
Exec Dt:
08/24/2005
2
KLAPPER, MARKUS
Exec Dt:
08/05/2005
3
SINIGERSKY, VESSELIN
Exec Dt:
04/04/2005
4
WU, WEICHENG
Exec Dt:
09/06/2005
5
UENSAL, OEMER
Exec Dt:
03/03/2005
6
BAURMEISTER, JOCHEN
Exec Dt:
03/03/2005
Assignee
1
CELANESE VENTURES GMBH
INDUSTRIEPARK HOCHST
FRANKFURT AM MAIN, GERMANY D-65926
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7445864
US20060234099
10520326
Correspondence name and address
STEVEN G. DAVIS, ESQ.
HAMILTON, BROOK, SMITH & REYNOLDS, P.C.
530 VIRGINIA ROAD, P.O. BOX 9133
CONCORD, MA 01742-9133
Assignment: 2
Reel/Frame:025165/0172   Pages: 16
Recorded: 10/20/2010
Attorney Dkt #:362480US0XPCT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WEHMEIER, ANDRE
Exec Dt:
06/21/2010
2
STENZEL, OLEG
Exec Dt:
06/14/2010
3
WU, WEICHENG
Exec Dt:
06/11/2010
4
GOETZ, CHRISTIAN
Exec Dt:
06/14/2010
5
NIEDERMEIER, WERNER
Exec Dt:
06/15/2010
6
HADDEMAN, MARINUS
Exec Dt:
06/11/2010
7
BLUME, ANKE
Exec Dt:
06/14/2010
Assignee
1
EVONIK DEGUSSA GMBH
RELLINGHAUSER STRASSE 1-11
ESSEN, GERMANY 45128
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8658816
US20110021801
12935205
Correspondence name and address
OBLON, SPIVAK, ET AL.
1940 DUKE STREET
ALEXANDRIA, VA 22314
Assignment: 3
Reel/Frame:049415/0386   Pages: 4
Recorded: 06/10/2019
Attorney Dkt #:074023-0859-589360
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZHAO, DONG BO
Exec Dt:
05/17/2019
2
WU, WEICHENG
Exec Dt:
05/17/2019
3
DENG, ZOE
Exec Dt:
05/17/2019
4
TANG, DEMI
Exec Dt:
05/17/2019
5
LI, LIQIANG
Exec Dt:
05/17/2019
Assignee
1
COVESTRO DEUTSCHLAND AG
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11332570
US20190352445
16411455
Correspondence name and address
DRINKER BIDDLE REATH LLP
222 DELAWARE AVE, STE. 1410
WILMINGTON, DE 19801-1621
Assignment: 4
Reel/Frame:060281/0933   Pages: 6
Recorded: 06/23/2022
Attorney Dkt #:074023-US-000046
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DENG, YAN
Exec Dt:
02/14/2022
2
WU, WEICHENG
Exec Dt:
02/08/2022
3
TANG, MIN
Exec Dt:
02/09/2022
Assignee
1
COVESTRO DEUTSCHLAND AG
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20230041434
17788315
Correspondence name and address
FAEGRE DRINKER BIDDLE & REATH LLP (WM)
ATTN: INTELLECTUAL PROPERTY GROUP
ONE LOGAN SQURE, SUITE 2000
PHILADELPHIA, PA 19103
Assignment: 5
Reel/Frame:060606/0266   Pages: 3
Recorded: 07/25/2022
Attorney Dkt #:220319PCTUS/2019P30291WOU
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZHANG, JUN
Exec Dt:
03/25/2022
2
WU, WEICHENG
Exec Dt:
03/21/2022
3
HE, JIEJIE
Exec Dt:
03/25/2022
4
WANG, QINGYUN
Exec Dt:
03/25/2022
Assignee
1
COVESTRO DEUTSCHLAND AG
KAISER-WILHELM-ALLEE 60
LEVERKUSEN, GERMANY 51373
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20230048176
17795085
Correspondence name and address
WILLIAM E. KUSS
210 SIXTH AVENUE
K&L GATES CENTER
PITTSBURGH, PA 15222-2613

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