IP Library › Assignment 009924/0835
Patent Assignment
Reel/Frame 009924/0835

Assignment of Assignor's Interest

Recorded: 1999-04-22 Pages: 2
Assignors
HABER, STEFFEN
Executed: 1999-02-15
KLEINER, HANS-JERG
Executed: 1999-02-25
BOGDANOVIC, SANDRA
Executed: 1999-02-22
BAHRMANN, HELMUT
Executed: 1999-03-26
FROHNING, CARL-DIETER
Executed: 1999-03-24
Assignee
Covered Property (1)
Tertiary Phosphanes Containing Alkylene Glycol Groups
Patent: 6,160,180 →
Application: 09/230,538 →
Related Assignments (3)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name Mar 6, 2000
From: HOECHST RESEARCH & TECHNOLOGY GMBH & CO. KG
To: AVENTIS RESEARCH & TECHNOLOGIES GMBH & CO. KG
Reel/Frame 010658/0945 →
Assignment of Assignor's Interest Mar 6, 2000
From: AVENTIS RESEARCH TECHNOLOGIES GMBH & CO. KG
To: CELANESE GMBH
Reel/Frame 010658/0961 →
Change of Name Jan 5, 2001
From: CELANESE GMBH
To: CELANESE CHEMICALS EUROPE GMBH
Reel/Frame 011751/0712 →