Patent Assignment
Reel/Frame 008642/0049
Assignment of Assignor's Interest
Recorded: 1997-08-06
Pages: 2
Assignors
KLEINER, HANS-JERG
Executed: 1997-03-11
BUDZINSKY, WINFRIED
Executed: 1997-03-11
KIRSCH, GUNTHER
Executed: 1997-03-11
Assignee
HOECHST AKTIENGESELLSCHAFT
BUILDING K-801, PATENT AND LICENSING DEPARTMENT, D-65926 FRANKFURT AM MAIN, GERMANY
Covered Property
(1)
1-Hydroxydihydrophosphole Oxides and 1-Hydroxy-Phospholane Oxides, Preparation Thereof and Use Thereof as Flame Retardants
Patent:
6,087,423 →
Application:
08/810,656 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jul 20, 2001
From: AVENTIS RESEARCH & TECHNOLOGIES GMBH & CO. KG
To: TICONA GMBH
Reel/Frame 011996/0789 →
Change of Name
Jul 23, 2001
From: HOESCHST RESEARCH & TECHNOLOGY DEUTSCHLAND GMBH & CO. KG
To: AVENTIS RESEARCH & TECHNOLGIES GMBH & CO. KG
Reel/Frame 011996/0782 →
Assignment of Assignor's Interest
Jul 23, 2001
From: HOECHST AKTIENGESELLSCHAFT
To: HOECHST RESEARCH & TECHNOLOGY DEUTSCHLAND GMBH & CO. KG
Reel/Frame 012002/0692 →