Patent Assignment
Reel/Frame 009534/0147
Assignment of Assignor's Interest
Recorded: 1998-11-24
Pages: 6
Assignor
HOECHST CELANESE CORPORATION
Executed: 1997-12-30
Assignee
HOECHST AKTIENGESELLSCHAFT
FRANKFURT AM MAIN, D-659, GERMANY
Covered Properties
(21)
Stable Non-Corrosive Solution of Polybenzimidazole Suitable for Use in the Formation of Shaped Articles
Patent:
4,321,182 →
Application:
06/260,652 →
Chemical Modification of Preformed Polybenzimidazole Semipermeable Membrane
Patent:
4,634,530 →
Application:
06/395,648 →
Two Stage High Molecular Weight Polybenzimidazole Production with Phosphorus Containing Catalyst
Patent:
4,463,167 →
Application:
06/477,093 →
Process for the Production of Polybenzimidazole Ultrafiltration Membranes
Patent:
4,693,824 →
Application:
06/778,994 →
Method for the Preparation of Polybenzimidazole Membranes
Patent:
4,693,825 →
Application:
06/779,017 →
Crosslinking of Polybenzimidazole Polymer with Divinyl Sulfone
Patent:
4,666,996 →
Application:
06/822,088 →
Modified Polybenzimidazole Polymer Membranes
Patent:
4,734,466 →
Application:
06/878,535 →
Compositions of Polybenzimidazoles and Polyarylates
Patent:
4,963,628 →
Application:
07/089,650 →
Process for Preparing Electrically Conductive Shaped Articles from Polybenzimidazoles
Patent:
4,868,008 →
Application:
07/189,769 →
N - Substituted Polybenzimidazole Polymer
Patent:
4,898,917 →
Application:
07/247,132 →
Preparation of N-Substituted Phenyl Polybenzimidazole Polymers
Patent:
4,933,397 →
Application:
07/315,992 →
Process for Preparing Electrically Conductive Shaped Articles from Polybenzimidazoles
Patent:
5,017,420 →
Application:
07/362,157 →
Novel Miscible Blends of Polybenzimidazoles and Polyamide-Imides Having Fluorine-Containing Linking Groups and Process for Preparation of the Blends
Patent:
5,137,985 →
Application:
07/411,351 →
Sulfalkylation of Hydroxyethylated Polybenzimidazole Polymers
Patent:
4,997,892 →
Application:
07/441,019 →
High Performance the Thermally Stable Polybenzimidazole Film
Patent:
5,017,681 →
Application:
07/478,163 →
Method for Producing a Corrosion Resistant Article by Applying a Polybenzimidazole Coating
Patent:
5,089,304 →
Application:
07/490,030 →
Fabrication of Microporous Pbi Membranes with Narrow Pore Size Distribution
Patent:
5,091,087 →
Application:
07/543,920 →
Formation of Filled Molding Powders of Polybenzimidazole and Other Polymers
Patent:
5,229,448 →
Application:
07/713,942 →
Stable Solution of Polybenzimidazole and Polysulfons Blends
Patent:
5,208,298 →
Application:
07/865,386 →
Process for Preparing Stabilized Polybenzimidazole Products
Patent:
5,264,542 →
Application:
07/888,664 →
Thermo-Oxidatively Stabilized Polybenzimidazole-Containing Articles
Patent:
5,277,981 →
Application:
07/890,752 →
Related Assignments
(23)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
Dec 23, 1981
From: DAVITT, ROBERT; CALUNDANN, GORDON W.; CHENEVEY, EDWARD C.
To: CELANESE CORPORATION, A CORP. OF DE.
Reel/Frame 003938/0500 →
Assignment of Assignors Interest.
May 17, 1984
From: CHOE, EUI W.; CONCIATORI, ANTHONY B.; WARD, BENNETT C.
To: CELANESE CORPORATION 1211 AVENUE OF THE AMERICAS NEW YORK NEW YORK 10036 A CORP OF DE
Reel/Frame 004257/0610 →
Assignment of Assignors Interest.
Sep 23, 1985
From: SANSONE, MICHAEL J.
To: CELANESE CORPORATION, 1211 AVENUE OF THE AMERICAS, NEW YORK, NEW YORK, 10036, A CORP OF DE.
Reel/Frame 004466/0077 →
Assignment of Assignors Interest.
Sep 23, 1985
From: TROUW, NORMAN S.
To: CELANESE CORPORATION, 1211 AVE. OF THE AMERICAS, NEW YORK, NY 10036, A CORP. OF
Reel/Frame 004472/0891 →
Assignment of Assignors Interest.
Jan 24, 1986
From: SANSONE, MICHAEL J.
To: CELANESE CORPORATION, A CORP. OF DE
Reel/Frame 004514/0950 →
Assignment of Assignors Interest.
Jun 25, 1986
From: KINDLER, ANDREW; BOWER, ESTHER A.; RAFALKO, JOSEPH J.; SANSONE, MICHAEL J.
To: CELANESE CORPORATION
Reel/Frame 004579/0196 →
Assignment of Assignors Interest.
Aug 26, 1987
From: CHEN, PAUL N. SR.; CHUNG, TAI-SHUNG; HARGET, PAUL J.
To: HOECHST CELANESE CORPORATION, 86 MORRIS AVENUE, SUMMIT, NEW JERSEY 07901 A CORP. OF DE.
Reel/Frame 004788/0196 →
Assignment of Assignors Interest.
Sep 21, 1988
From: SANSONE, MICHAEL J.
To: HOECHST CELANESE CORPORATION, A CORP. OF DE
Reel/Frame 004947/0606 →
Assignment of Assignors Interest.
Feb 27, 1989
From: SANSONE, MICHAEL J.; KWIATEK, MARK S.
To: HOECHST CELANESE CORPORATION
Reel/Frame 005050/0141 →
Assignment of Assignors Interest.
Nov 13, 1989
From: SANSONE, MICHAEL J.; GUPTA, BALARAM; FORBES, CHARLES E.; KWIATEK, MARK S.
To: HOECHST CELANESE CORPORATION, 86 MORRIS AVENUE, SUMMIT, NEW JERSEY 07901 A CORP. OF DE
Reel/Frame 005187/0081 →
Assignment of Assignors Interest.
Mar 7, 1990
From: KUDER, JAMES E.
To: HOECHST CELANESE CORPORATION
Reel/Frame 005256/0781 →
Assignment of Assignors Interest.
Jun 25, 1990
From: CALUNDANN, GORDON W.; CHUNG, TAI-SHUNG
To: HOECHST CELANESE CORPORATION, A CORP OF DE
Reel/Frame 005375/0781 →
Assignment of Assignors Interest.
Jun 12, 1991
From: COOPER, WILLIAM M.
To: HOECHCHST CELANESE CORPORATION, A CORP. OF DE
Reel/Frame 005747/0912 →
Assignment of Assignors Interest.
Apr 8, 1992
From: CHUNG, TAI-SHUNG; SCHLASK, ARTHUR G.; KURSCHUS, DIETER
To: HOECHST CELANESE CORPORATION, A CORPORATION OF DE
Reel/Frame 006086/0448 →
Assignment of Assignors Interest.
Apr 20, 1992
From: CHEN, PAUL N., SR.; GLICK, MORTON; VORA, ROHITKUMAR H.; JAFFE, MICHAEL
To: HOECHST CELANESE CORPORATION A CORPORATION OF DE
Reel/Frame 006090/0597 →
Assignment of Assignors Interest.
May 27, 1992
From: HUGHES, O. RICHARD; KURSCHUS, DIETER
To: HOECHST CELANESE CORPORATION, A DE CORP.
Reel/Frame 006138/0107 →
Assignment of Assignors Interest.
May 28, 1992
From: HAIDER, M. ISHAQ; CHENEVEY, EDWARD C.
To: HOECHST CELANESE CORPORATION, A CORP. OF DE
Reel/Frame 006143/0305 →
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: HOECHST AG
To: AVENTIS PHARMA DEUTSCHLAND
Reel/Frame 017223/0694 →
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 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 →