Patent Assignment
Reel/Frame 071465/0043
Assignment of Assignor's Interest
Recorded: 2025-06-20
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
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jun 20, 2025
From: STOESSEL, PHILIPP; MEKIC, AMEL
To: MERCK KGAA
Reel/Frame 071464/0969 →
Assignment of Assignor's Interest
Jun 20, 2025
From: MERCK PERFORMANCE MATERIALS GERMANY GMBH
To: MERCK PATENT GMBH
Reel/Frame 071465/0164 →
Nunc Pro Tunc Assignment
Feb 10, 2026
From: MERCK PATENT GMBH
To: UDC IRELAND LIMITED
Reel/Frame 073741/0249 →