Patent Assignment
Reel/Frame 030151/0001
Assignment of Assignor's Interest
Recorded: 2013-04-04
Pages: 2
Assignee
E. I. DU PONT DE NEMOURS AND COMPANY
4417 LANCASTER PIKE, BARLEY MILL PLAZA 25, WILMINGTON, DELAWARE, 19809
Covered Property
(1)
Method of Manufacturing Copper Electrode
Related Assignments
(6)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jun 25, 2019
From: E. I. DU PONT DE NEMOURS AND COMPANY
To: DUPONT ELECTRONICS, INC.
Reel/Frame 049583/0269 →
Assignment of Assignor's Interest
Dec 20, 2022
From: DUPONT ELECTRONICS, INC.
To: DU PONT CHINA LIMITED
Reel/Frame 062201/0889 →
Change of Name
Mar 20, 2025
From: DU PONT CHINA LIMITED
To: CELANESE MERCURY HOLDINGS INC.
Reel/Frame 070567/0231 →
Nunc Pro Tunc Assignment
Jan 31, 2026
From: CELANESE MERCURY HOLDINGS INC.
To: CELANESE POLYMERS HOLDING, INC.
Reel/Frame 073651/0503 →
Nunc Pro Tunc Assignment
Jan 31, 2026
From: CELANESE POLYMERS HOLDING, INC.
To: CELANESE SPECIALTY PRODUCTS, INC.
Reel/Frame 073651/0573 →
Nunc Pro Tunc Assignment
Jan 31, 2026
From: CELANESE SPECIALTY PRODUCTS, INC.
To: MICROMAX (US) HOLDINGS LLC
Reel/Frame 073651/0583 →