IP Library › Assignment 021051/0677
Patent Assignment
Reel/Frame 021051/0677

Assignment of Assignor's Interest

Recorded: 2008-06-05 Pages: 4
Assignors
SUNKARA, HARI BABU
Executed: 2007-09-13
DO, HIEP QUANG
Executed: 2008-05-16
Assignee
E. I. DU PONT DE NEMOURS AND COMPANY
4417 LANCASTER PIKE, LEGAL-PATENTS, WILMINGTON, DELAWARE, 19805
Covered Property (1)
Processes for Reducing Color in Polytrimethylene Ether Glycol Polymers
Patent: 7,745,668 →
Application: 11/833,453 →
Publication: US 2007/0276164
Related Assignments (2)
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 →