Patent Assignment
Reel/Frame 021831/0847
Assignment of Assignor's Interest
Recorded: 2008-11-10
Pages: 7
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
ZU, LIMIN
Executed: 2007-09-18
Assignee
NIGBO WANHUA POLYURETHANES CO., LTD.
WANJUA INDUSTRIAL PARK, NO. 39 HUANDAO NORTH ROAD, DAZIED DEVELOPMENT ZONE, NINGBO, ZHEJIANG 315812 P.R., 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.
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 →
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.
Apr 2, 2010
From: DING, JIANSHENG; CHEN, JIANFENG; ZHANG, HONGKE; ZOU, HAIKUI
To: NINGBO WANHUA POLYURETHANES CO., LTD.; BEIJING UNIVERSITY OF CHEMICAL TECHNOLOGY
Reel/Frame 024180/0453 →
Change of Name
Jan 6, 2014
From: NINGBO WANHUA POLYURETHANES CO., LTD.
To: WANHUA CHEMICAL (NINGBO) CO., LTD.
Reel/Frame 031924/0076 →