IP Library › Assignment 008455/0087
Patent Assignment
Reel/Frame 008455/0087

Assignment of Assignor's Interest

Recorded: 1997-03-10 Pages: 2
Assignors
REGNAT, DIETER
Executed: 1997-02-04
KLEINER, HANS-JERG
Executed: 1997-02-04
BAHRMANN, HELMUT
Executed: 1997-02-04
Assignee
HOECHST AG
D-65926 FRANKFURT AM MAIN, GERMANY
Covered Property (1)
Substituted Diphenyldiphosphines and a Process for Their Preparation
Patent: 5,801,287 →
Application: 08/814,297 →
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jun 15, 2000
From: AVENTIS RESEARCH & TECHNOLOGIES GMBH & CO. KG
To: CELANESE GMBH
Reel/Frame 010901/0246 →
Assignment of Assignor's Interest Jun 15, 2000
From: HOECHST AKTIENGESELLSCHAFT
To: AVENTIS RESEARCH & TECHNOLOGY GMBH & CO. KG
Reel/Frame 010901/0425 →