Patent Assignment
Reel/Frame 017540/0056
Assignment of Assignor's Interest
Recorded: 2006-04-27
Pages: 6
Assignors
SUNKARA, HARI BABU
Executed: 2006-03-09
NG, HOWARD C.
Executed: 2006-03-09
ZHENG, WEI
Executed: 2006-03-10
WU, ZHIHONG
Executed: 2006-03-08
Assignee
E. I. DU PONT DE NEMOURS AND COMPANY
1007 MARKET STREET, LEGAL-PATENTS, WILMINGTON, DELAWARE, 19898
Covered Property
(1)
Manufacture of Polytrimethylene Ether Glycol
Patent:
7,164,046 →
Application:
11/336,004 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jul 26, 2019
From: E. I. DU PONT DE NEMOURS AND COMPANY
To: DUPONT INDUSTRIAL BIOSCIENCES USA, LLC
Reel/Frame 049879/0043 →
Corrective Assignment to Correct the Entity Type Previously Recorded at Reel: 049879 Frame: 0043. Assignor(S) Hereby Confirms the Assignment.
Sep 6, 2019
From: E. I. DU PONT DE NEMOURS AND COMPANY
To: DUPONT INDUSTRIAL BIOSCIENCES USA, LLC
Reel/Frame 050300/0408 →
Assignment of Assignor's Interest
Jan 18, 2024
From: DUPONT INDUSTRIAL BIOSCIENCES USA, LLC
To: COVATION INC.
Reel/Frame 066350/0534 →