Patent Assignment
Reel/Frame 009534/0709
Assignment of Assignor's Interest
Recorded: 1998-11-24
Pages: 5
Assignor
HOECHST CELANESE CORPORATION
Executed: 1997-12-30
Assignee
HOECHST AKTIENGESELLSCHAFT
FRANKFURT AM MAIN, D-659, GERMANY
Covered Property
(1)
Blends of Polybenzimidazoles and Aromatic Polyamides, Aromatic Polyamide-Hydrazides or Aromatic Polyamides Containing Heterocyclic Linkages
Patent:
5,290,884 →
Application:
07/675,782 →
Related Assignments
(7)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest.
Mar 27, 1991
From: CALUNDANN, GORDON W.; HEROLD, FRIEDRICH; CHENEVEY, EDWARD C.; CHUNG, TAI-SHUNG
To: HOECHST CELANESE CORPORATION, 86 MORRIS AVENUE, SUMMIT, NJ 07901, A CORP. OF DE.
Reel/Frame 005679/0021 →
Assignment of Assignor's Interest
Nov 14, 2005
From: AVENTIS PHARMA DEUTSCHLAND GMBH
To: CELANESE VENTURES GMBH
Reel/Frame 017223/0711 →
Assignment of Assignor's Interest
Nov 14, 2005
From: CLEANESE VENTURES GMBH
To: PEMEAS GMBH
Reel/Frame 017230/0181 →
Assignment of Assignor's Interest
Nov 14, 2005
From: HOECHST AG
To: AVENTIS PHARMA DEUTSCHLAND
Reel/Frame 017223/0694 →
Assignment of Assignor's Interest
Nov 18, 2005
From: HOECHST AG
To: AVENTIS PHARMA DEUTSCHLAND
Reel/Frame 017240/0846 →
Assignment of Assignor's Interest
Nov 19, 2005
From: CELANESE VENTURES GMBH
To: PEMEAS GMBH
Reel/Frame 017325/0323 →
Assignment of Assignor's Interest
Nov 19, 2005
From: AVENTIS PHARMA DEUTSCHLAND
To: CELANESE VENTURES GMBH
Reel/Frame 017275/0116 →