Patent Assignment
Reel/Frame 071617/0882
Assignment of Assignor's Interest
Recorded: 2025-07-07
Pages: 7
Assignor
MERCK PATENT GMBH
Executed: 2025-02-13
Assignee
IDEMITSU KOSAN CO., LTD.
2-1, OTEMACHI 1-CHOME, CHIYODA-KU, TOKYO, 100-8321, JAPAN
Covered Properties
(7)
Benzanthracene Derivatives for Organic Electroluminescent Devices
Novel Materials for Organic Electroluminescent Devices
Novel Materils for Organic Electroluminescence Device
Materials for Organic Electroluminescent Devices Containing Substituted 10-benzo[c]phenanthrenes
Novel Materials for Organic Electroluminescent Devices
Organic Electroluminescence Devices Containing Substituted Benzo[C]Phenanthrenes
Electronic Device
Related Assignments
(7)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Dec 11, 2009
From: STOESSEL, PHILIPP; BUESING, ARNE; HEIL, HOLGER
To: MERCK PATENT GMBH
Reel/Frame 023640/0545 →
Assignment of Assignor's Interest
Oct 1, 2010
From: BUESING, ARNE; HEIL, HOLGER; STOESSEL, PHILIPP
To: MERCK PATENT GMBH
Reel/Frame 025079/0184 →
Assignment of Assignor's Interest
Oct 14, 2010
From: BUESING, ARNE; HEIL, HOLGER; STOESSEL, PHILIPP
To: MERCK PATENT GMBH
Reel/Frame 025139/0388 →
Assignment of Assignor's Interest
Nov 16, 2011
From: PARHAM, AMIR HOSSAIN; BUESING, ARNE; HELL, HOLGER; STOESSEL, PHILIPP
To: MERCK PATENT GMBH
Reel/Frame 027288/0733 →
Assignment of Assignor's Interest
Feb 1, 2012
From: PARHAM, AMIR HOSSAIN; BUESING, ARNE; HEIL, HOLGER; STOESSEL, PHILIPP
To: MERCK PATENT GMBH
Reel/Frame 027634/0699 →
Assignment of Assignor's Interest
Feb 4, 2014
From: PARHAM, AMIR HOSSAIN; BUESING, ARNE; HEIL, HOLGER; STOESSEL, PHILIPP
To: MERCK PATENT GMBH
Reel/Frame 032133/0780 →
Assignment of Assignor's Interest
Jul 1, 2015
From: PFLUMM, CHRISTOF; VOGES, FRANK; KROEBER, JONAS VALENTIN; STOESSEL, PHILIPP
To: MERCK PATENT GMBH
Reel/Frame 036000/0651 →