Patent Assignment
Reel/Frame 024180/0453
Corrective Assignment to Correct the Assignee Information by Adding Missing Second Assignee Previously Recorded on Reel 022124 Frame 0072. Assignor(S) Hereby Confirms the Assignment of Assignor's Interest.
Recorded: 2010-04-02
Pages: 10
Assignors
DING, JIANSHENG
Executed: 2007-09-19
CHEN, JIANFENG
Executed: 2007-09-18
ZHANG, HONGKE
Executed: 2007-09-21
ZOU, HAIKUI
Executed: 2007-09-18
HUA, WEIQI
Executed: 2007-09-21
ZHANG, PENGYUAN
Executed: 2007-09-18
SUN, SHUCHANG
Executed: 2007-09-18
CHU, GUANGWEN
Executed: 2007-09-18
XU, LIMIN
Executed: 2007-09-18
Assignees
NINGBO WANHUA POLYURETHANES CO., LTD.
WANHUA INDUSTRIAL PARK, NINGBO DAXIE ECONOMIC DEVELOPMENT ZONE, NINGBO, ZHEJIANG PROVINCE, 315812, CHINA
BEIJING UNIVERSITY OF CHEMICAL TECHNOLOGY
P.O. BOX 35, NO. 15 BEISANHUAN EAST ROAD, CHAOYANG DISTRICT, BEIJING, 100029, CHINA
Covered Property
(1)
Method of Preparing Polymethylene-Polyphenyl-Polyamine
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Nov 10, 2008
From: DING, JIANSHENG; CHEN, JIANFENG; ZHANG, HONGKE; ZOU, HAIKUI
To: NIGBO WANHUA POLYURETHANES CO., LTD.
Reel/Frame 021831/0847 →
Corrective Assignment to Correct the Assignor's Name from Limin Zu to Limin Xu and Also Correct Assignee's Name and Address Previously Recorded on Reel 021831 Frame 0847. Assignor(S) Hereby Confirms the Assignment of Assignor's Interest.
Jan 19, 2009
From: DING, JIANSHENG; CHEN, JIANFENG; ZHANG, HONGKE; ZOU, HAIKUI
To: NINGBO WANHUA POLYURETHANES CO., LTD
Reel/Frame 022124/0072 →
Change of Name
Jan 6, 2014
From: NINGBO WANHUA POLYURETHANES CO., LTD.
To: WANHUA CHEMICAL (NINGBO) CO., LTD.
Reel/Frame 031924/0076 →