IP Library Assignment 017001/0390
Patent Assignment
Reel/Frame 017001/0390

Assignment of Assignor's Interest

Recorded: 2006-01-11 Pages: 2
Assignors
TAM, WILSON
Executed: 2005-12-20
WILLIAMSON, DAVID T.
Executed: 2005-12-20
Assignee
E. I. DU PONT DE NEMOURS AND COMPANY
1007 MARKET STREET, LEGAL-PATENTS, WILMINGTON, DELAWARE, 19898
Covered Property (1)
Polymerization of Cyclic Amides Using N-Heterocyclic Carbene and Metal Amide and Metal Alkoxide Catalysts
Patent: 7,635,747 →
Application: 11/269,966 →
Publication: US 2006/0096699
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jun 26, 2019
From: E. I. DU PONT DE NEMOURS AND COMPANY
To: DUPONT POLYMERS, INC.
Reel/Frame 049590/0650 →
Change of Name Feb 11, 2026
From: DUPONT POLYMERS, INC.
To: CELANESE POLYMERS HOLDING, INC.
Reel/Frame 074734/0498 →