Patent Assignment
Reel/Frame 061089/0704
Assignment of Assignor's Interest
Recorded: 2022-09-14
Pages: 3
Assignor
STOESSEL, PHILIPP
Executed: 2022-03-30
Assignee
MERCK KGAA
FRANKFURTER STRASSE 250, DARMSTADT, 64293, GERMANY
Covered Property
(1)
Heterocyclic Compounds for Organic Electroluminescent Devices
Application:
17/911,434 →
Publication:
US 2023/0147279
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Sep 14, 2022
From: MERCK KGAA
To: MERCK PERFORMANCE MATERIALS GERMANY GMBH
Reel/Frame 061089/0736 →
Assignment of Assignor's Interest
Sep 14, 2022
From: MERCK PERFORMANCE MATERIALS GERMANY GMBH
To: MERCK PATENT GMBH
Reel/Frame 061089/0793 →
Nunc Pro Tunc Assignment
Feb 10, 2026
From: MERCK PATENT GMBH
To: UDC IRELAND LIMITED
Reel/Frame 073741/0249 →