IP Library › Assignment 022521/0278
Patent Assignment
Reel/Frame 022521/0278

Assignment of Assignor's Interest

Recorded: 2009-04-08 Pages: 4
Assignors
ZHU, QUINN QUN
Executed: 2009-03-20
XUE, ZHIXIONG
Executed: 2009-03-20
Assignee
E. I. DU PONT DE NEMOURS AND COMPANY
4417 LANCASTER PIKE, BARLEY MILL PLAZA 25, WILMINGTON, DELAWARE, 19809
Covered Property (1)
Delta-4 Desaturase and Its Use in Making Polyunsaturated Fatty Acids
Patent: 8,119,784 →
Application: 12/408,860 →
Publication: US 2009/0253188
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 US HOLDING, LLC
Reel/Frame 049880/0001 →
Corrective Assignment to Correct the Designation of Assignee as a Delaware Corporation to a Delaware Limited Liability Company Previously Recorded on Reel 049880 Frame 0001. Assignor(S) Hereby Confirms the Assignment. Aug 28, 2019
From: E. I. DU PONT DE NEMOURS AND COMPANY
To: DUPONT US HOLDING, LLC
Reel/Frame 051502/0610 →