Patent Assignment
Reel/Frame 061311/0177
Assignment of Assignor's Interest
Recorded: 2022-10-05
Pages: 4
Assignor
MERCK KGAA
Executed: 2020-06-22
Assignee
MERCK PERFORMANCE MATERIALS GERMANY GMBH
FRANKFURTER STRASSE 250, DARMSTADT, 64293, GERMANY
Covered Property
(1)
Polycyclic Compounds for Organic Electroluminescent Devices
Application:
17/917,005 →
Publication:
US 2023/0183269
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Oct 5, 2022
From: STOESSEL, PHILIPP
To: MERCK KGAA
Reel/Frame 061311/0163 →
Assignment of Assignor's Interest
Oct 5, 2022
From: MERCK PERFORMANCE MATERIALS GERMANY GMBH
To: MERCK PATENT GMBH
Reel/Frame 061311/0187 →
Nunc Pro Tunc Assignment
Feb 10, 2026
From: MERCK PATENT GMBH
To: UDC IRELAND LIMITED
Reel/Frame 073741/0249 →