IP Library Assignment 033320/0886
Patent Assignment
Reel/Frame 033320/0886

Assignment of Assignor's Interest

Recorded: 2014-07-16 Pages: 4
Assignors
TAO, YUEFEI
Executed: 2014-07-14
WILCZEK, LECH
Executed: 2014-07-15
THOMPSON, JENNIFER LEIGH
Executed: 2014-07-14
Assignee
E. I. DU PONT DE NEMOURS AND COMPANY
1007 MARKET STREET, WILMINGTON, DELAWARE, 19898
Covered Property (1)
Thermoplastic Melt-Mixed Composition with Epoxy-Amino Acid Compound Heat Stabilizer and Processes for Their Preparation
Patent: 8,871,874 →
Application: 13/915,952 →
Publication: US 2013/0338262
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jun 26, 2019
From: E. I. DU PONT DE NEMOURS AND COMPANY
To: DUPONT POLYMERS, INC.
Reel/Frame 049590/0650 →
Change of Name Feb 11, 2026
From: DUPONT POLYMERS, INC.
To: CELANESE POLYMERS HOLDING, INC.
Reel/Frame 074734/0498 →