Patent Assignment
Reel/Frame 062572/0304
Assignment of Assignor's Interest
Recorded: 2023-02-02
Pages: 4
Assignor
MERCK KGAA
Executed: 2020-06-22
Assignee
MERCK PERFORMANCE MATERIALS GERMANY GMBH
FRANKFURTER STRASSE 250, DARMSTADT, 64293, GERMANY
Covered Property
(1)
Heteroaromatic Compounds for Organic Electroluminescent Devices
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Feb 2, 2023
From: STOESSEL, PHILIPP
To: MERCK KGAA
Reel/Frame 062572/0289 →
Assignment of Assignor's Interest
Feb 2, 2023
From: MERCK PERFORMANCE MATERIALS GERMANY GMBH
To: MERCK PATENT GMBH
Reel/Frame 062572/0353 →
Nunc Pro Tunc Assignment
Feb 10, 2026
From: MERCK PATENT GMBH
To: UDC IRELAND LIMITED
Reel/Frame 073741/0249 →