IP Library Assignment 007549/0082
Patent Assignment
Reel/Frame 007549/0082

Assignment of Assignor's Interest

Recorded: 1995-05-02 Pages: 2
Assignors
KOHLPAINTNER, CHRISTIAN
Executed: 1995-02-27
BELLER, MATTHIAS
Executed: 1995-02-27
Assignee
HOECHST AG
FRANKFURT AM MAIN, D-659, GERMANY
Covered Property (1)
Palladium Catalysts Containing Sulfonated Bisphosphines as Ligands, Process for Their Preparation and Their Use in Carbonylation Reactions
Patent: 5,631,393 →
Application: 08/433,315 →
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 →