IP Library › Assignment 008567/0397
Patent Assignment
Reel/Frame 008567/0397

Assignment of Assignor's Interest

Recorded: 1997-03-07 Pages: 2
Assignors
BAHRMANN, HELMUT
Executed: 1997-02-04
KLEINER, HANS-JERG
Executed: 1997-02-04
REGNAT, DIETER
Executed: 1997-02-04
Assignee
HOECHST AG
D-65926 FRANKFURT AM MAIN, GERMANY
Covered Property (1)
Process for the Preparation of Aldehydes by Means of a Catalyst System Comprising Rhodium and Substituted Diphenyldiphospines
Patent: 5,801,291 →
Application: 08/813,877 →
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 →