IP Library › Assignment 028333/0353
Patent Assignment
Reel/Frame 028333/0353

Confirmatory License

Recorded: 2012-06-07 Pages: 2
Assignor
E.I. DUPONT DE NEMOURS & CO., INC.
Executed: 2011-11-02
Assignee
E.I. DUPONT DE NEMOURS & CO., INC.
4417 LANCASTER PIKE,, CRP 702/2028, WILMINGTON, DELAWARE, 19805
Covered Property (1)
Sulfonimide-Containing Poly(Arylene Ether)S and Poly(Arylene Ether Sulfone)S, Methods for Producing the Same, and Uses Thereof
Patent: 7,135,537 →
Application: 10/833,786 →
Publication: US 2004/0236062
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jul 21, 2004
From: HOFMANN, MICHAEL A.
To: E.I. DU PONT DE NEMOURS AND COMPANY
Reel/Frame 014879/0519 →
Confirmatory License Jun 7, 2012
From: E.I. DUPONT DE NEMOURS & CO., INC.
To: U.S. DEPARTMENT OF ENERGY
Reel/Frame 028333/0498 →