Patent Assignment
Reel/Frame 004787/0484
Assignment of Assignors Interest.
Recorded: 1987-11-25
Pages: 1
Assignors
BACH, HANSWILHELM
Executed: 1987-10-23
CORNILS, BOY
Executed: 1987-10-23
GICK, WILHELM
Executed: 1987-10-23
DIEKHAUS, GERHARD
Executed: 1987-10-23
KONKOL, WERNER
Executed: 1987-10-23
WIEBUS, ERNST
Executed: 1987-10-23
Assignee
RUHRCHEMIE AKTIENGESELLSCHAFT
4200 OBERHAUSEN 13, GERMANY
Covered Property
(1)
Hydroformylation Process
Patent:
4,801,754 →
Application:
07/125,595 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
May 6, 2005
From: HOECHST AG
To: CELANESE CHEMICALS EUROPE GMBH
Reel/Frame 016580/0237 →
Assignment of Assignor's Interest
Mar 27, 2007
From: CELANESE CHEMICALS EUROPE GMBH; CELANESE GMBH; HOECHST AG; CLARIANT GMBH
To: DRACHENFELSSEE 521. VV GMBH (TO BE RENAMED OXEA DEUTSCHLAND GMBH)
Reel/Frame 019069/0199 →