Patent Assignment
Reel/Frame 030040/0526
Assignment of Assignor's Interest
Recorded: 2013-03-19
Pages: 2
Assignor
LABRANCHE, MARC H.
Executed: 2013-03-18
Assignee
E.I. DUPONT DE NEMOURS AND COMPANY
4417 LANCASTER AVE, BARLEY MILL PLAZA 25, WILMINGTON, DELAWARE, 19805
Covered Property
(1)
Copper Paste Composition and Its Use in a Method for Forming Copper Conductors on Substrates
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 →
Assignment of Assignor's Interest
Jan 24, 2026
From: CELANESE MERCURY HOLDINGS INC.
To: CELANESE POLYMERS HOLDING, INC.
Reel/Frame 074491/0515 →
Assignment of Assignor's Interest
Jan 25, 2026
From: CELANESE POLYMERS HOLDING, INC.
To: CELANESE SPECIALTY PRODUCTS, INC.
Reel/Frame 074491/0555 →
Assignment of Assignor's Interest
Jan 26, 2026
From: CELANESE SPECIALTY PRODUCTS, INC.
To: MICROMAX (US) HOLDINGS LLC
Reel/Frame 074501/0151 →