IP Library › Assignment 007876/0464
Patent Assignment
Reel/Frame 007876/0464

Assignment of Assignor's Interest

Recorded: 1996-02-21 Pages: 2
Assignors
NAUMANN, CHRISTOPH
Executed: 1996-01-09
TAFESH, AHMED
Executed: 1996-01-09
REGNAT, DIETER
Executed: 1996-01-09
KLEINER, HANS-JERG
Executed: 1996-01-09
Assignee
HOECHST AKTIENGESELLSCHAFT
PATENT AND LICENSING DEPARTMENT, BUILDING K-801, D-65926 FRANKFURT AM MAIN, GERMANY
Covered Property (1)
Sulfonated Diphosphines and a Process for Their Preparation
Patent: 5,684,182 →
Application: 08/604,573 →
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 →