Patent Assignment
Reel/Frame 012730/0941
Assignment of Assignor's Interest
Recorded: 2002-03-14
Pages: 2
Assignee
E. I. DU PONT DE NEMOURS AND COMPANY
LEGAL PATENTS, BARLEY MILL PLAZA 25, WILMINGTON, DELAWARE, 19880
Covered Property
(1)
Polyether Ester Elastomer Comprising Polytrimethylene Ether Ester Soft Segment and Tetramethylene Ester Hard Segment
Patent:
6,562,457 →
Application:
10/016,195 →
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 →