IP Library › Assignment 029992/0739
Patent Assignment
Reel/Frame 029992/0739

Assignment of Assignor's Interest

Recorded: 2013-03-14 Pages: 2
Assignors
KUROUCHI, MASAHIRO
Executed: 2013-02-25
SUMI, HIROYUKI
Executed: 2013-02-25
Assignee
E.I. DUPONT DE NEMOURS AND COMPANY
4417 LANCASTER AVE, BARLEY MILL PLAZA 25, WILMINGTON, DELAWARE, 19805
Covered Property (1)
Polyester Composition
Patent: 8,754,171 →
Application: 13/783,842 →
Publication: US 2013/0303660
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 →