IP Library › Assignment 028832/0674
Patent Assignment
Reel/Frame 028832/0674

Assignment of Assignor's Interest

Recorded: 2012-08-22 Pages: 2
Assignor
LEE, KIU-SEUNG
Executed: 2012-08-10
Assignee
E. I. DU PONT DE NEMOURS AND COMPANY
4417 LANCASTER PIKE, BARLEY MILL PLAZA 25, WILMINGTON, DELAWARE, 19809
Covered Property (1)
Process for Preparing Aramid Copolymer
Patent: 8,809,434 →
Application: 13/559,661 →
Publication: US 2013/0203906
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Feb 19, 2014
From: LEE, KIU-SEUNG
To: E. I. DU PONT DE NEMOURS AND COMPANY
Reel/Frame 032242/0734 →
Assignment of Assignor's Interest Jun 25, 2019
From: E. I. DU PONT DE NEMOURS AND COMPANY
To: DUPONT SAFETY & CONSTRUCTION, INC.
Reel/Frame 049585/0450 →