IP Library › Assignment 012416/0672
Patent Assignment
Reel/Frame 012416/0672

Assignment of Assignor's Interest

Recorded: 2001-12-31 Pages: 2
Assignors
MARCHIDON, ERNEST KEITH ANDREW
Executed: 2001-10-25
NG, HOWARD CHUNG-HO
Executed: 2001-10-25
Assignee
DUPONT CANADA INC.
7070 MISSISSAUGA ROAD, MISSISSAUGA, ONTARIO, L5M 2, CANADA
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 Jan 8, 2002
From: SUNKARA, HARI B.; MANZER, LEO E.
To: E. I. DU PONT DE NEMOURS AND COMPANY
Reel/Frame 012439/0385 →
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 →