IP Library › Assignment 012439/0385
Patent Assignment
Reel/Frame 012439/0385

Assignment of Assignor's Interest

Recorded: 2002-01-08 Pages: 2
Assignors
SUNKARA, HARI B.
Executed: 2001-10-22
MANZER, LEO E.
Executed: 2001-10-29
Assignee
E. I. DU PONT DE NEMOURS AND COMPANY
LEGAL PANTENTS, 1007 MARKET STREET, WILMINGTON, DELAWARE, 19898
Covered Property (1)
Continuous Process for the Preparation of Polytrimethylene Ether Glycol
Patent: 6,720,459 →
Application: 09/738,689 →
Publication: US 2002/0010374
Related Assignments (3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Dec 31, 2001
From: MARCHIDON, ERNEST KEITH ANDREW; NG, HOWARD CHUNG-HO
To: DUPONT CANADA INC.
Reel/Frame 012416/0672 →
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 →