Patent Assignment
Reel/Frame 017223/0694
Assignment of Assignor's Interest
Recorded: 2005-11-14
Pages: 13
Assignor
HOECHST AG
Executed: 2005-08-09
Assignee
AVENTIS PHARMA DEUTSCHLAND
INDUSTRIEPARK HOCHST, D-65926 FRANKFURT, GERMANY
Covered Properties
(49)
Compositions of Aromatic Polybenzimidazoles and Aromatic Polyetherimides
Patent:
4,973,630 →
Application:
06/831,385 →
Compositions of Aromatic Polybenzimidazoles and Aromatic Polyimides
Patent:
4,973,629 →
Application:
06/831,389 →
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 →
Blends of Polybenzimidazoles and Aromatic Polyamides, Aromatic Polyamide-Hydrazides or Aromatic Polyamides Containing Heterocyclic Linkages
Patent:
5,290,884 →
Application:
07/675,782 →
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 →
Fine-Grained Polyether-Ketone Powder, Process for the Manufacture Thereof, and the Use Thereof
Patent:
5,247,052 →
Application:
07/891,779 →
Polymer Electrolytes and Their Preparation
Patent:
5,362,836 →
Application:
08/073,878 →
Polymer Electrolyte Membrane, and Process for the Production Thereof
Patent:
5,438,082 →
Application:
08/075,219 →
Semipermeable Membranes of Homogeneously Miscible Polymer Alloys
Patent:
5,505,851 →
Application:
08/173,997 →
Homogeneous Polymer Alloys Based on Sulfonated Aromatic Polyether Ketones
Patent:
5,510,424 →
Application:
08/383,620 →
Polymer Electrolyte Membrane for Use in Fuel Cells and Electrolysis Cells
Patent:
5,741,408 →
Application:
08/444,392 →
Polymer Electrolyte Membrane, and Process for the Production Thereof
Patent:
5,561,202 →
Application:
08/444,716 →
Acid - Modified Polybenzimidazole Fuel Cell Elements
Patent:
5,599,639 →
Application:
08/549,337 →
Electrochemical Cell
Patent:
5,853,911 →
Application:
08/816,263 →
Metallized Cation Exchange Membrane
Patent:
5,906,716 →
Application:
08/817,382 →
Homogeneous Polymer Alloys Based on Sulfonated Aromatic Polyetherkeytones
Patent:
5,834,566 →
Application:
08/885,514 →
Process for Producing Polybenzimidazole Pastes and Gels for Use in Fuel Cells
Patent:
5,945,233 →
Application:
08/895,059 →
Process for Producing Polybenzimidazole Fabrics for Use in Fuel
Patent:
6,042,968 →
Application:
08/895,060 →
Polymer Electrolyte Membrane and Process for the Production Thereof
Patent:
6,214,488 →
Application:
08/944,667 →
Polyarylene Sulphides with Polymer-Bound Phosphonium Salts and Process for Producing Them
Patent:
6,077,918 →
Application:
08/973,638 →
Polymer Electrolytes and Process for Their Production
Patent:
6,096,856 →
Application:
08/983,626 →
Process for Continuous Production of Membrane-Electrode Composites
Patent:
6,197,147 →
Application:
09/091,659 →
Process for Producing a Cation-Exchanging Polymer Electrolyte Membrane (Pem)
Patent:
6,214,891 →
Application:
09/171,756 →
Proton Conductors Which Are Thermally Stable Over a Wise Range and Have Good Proton Conductivities
Patent:
6,264,857 →
Application:
09/242,036 →
Process for Producing Polymeric Films for Use as Fuel Cells
Patent:
6,187,231 →
Application:
09/269,082 →
Composite of Polysilamine and Strong Acid
Patent:
6,174,615 →
Application:
09/301,845 →
Method for Producing Polymer Electrolyte Membrane and Fuel Cell
Patent:
6,352,742 →
Application:
09/424,164 →
Method for producing solutions of polymers functionalized by acid groups by microwave radiation
Patent:
6,348,516 →
Application:
09/424,982 →
Polymer-Stabilised Metal Colloid Solutions, Method for Producing Said Solutions and Use of the Same as Catalysts for Fuel Cell
Patent:
6,462,095 →
Application:
09/529,528 →
Method for Producing a Membrane Used to Operate Fuel Cells and Electrolyzers
Patent:
6,355,149 →
Application:
09/555,973 →
Polybetaine Stabilized Platinum Nanoparticles, Method for the Production Thereof and Utilization for Fuel-Cell Catalysts
Patent:
6,391,818 →
Application:
09/555,980 →
Fuel Cell with Improved Long Term Performance, Method for Operating a Pme Fuel Cell and Pme Fuel Cell Battery
Patent:
6,852,440 →
Application:
09/762,513 →
Polymer Composition, Membrane Containing Said Composition, Method for the Production and Uses Thereof
Patent:
6,632,847 →
Application:
09/831,338 →
Method for Producing Bridged Polymer Membrane and Fuel Cell
Patent:
6,790,553 →
Application:
09/889,971 →
Method for Producing Sulfonated Aromatic Polymers and Use of the Process Products for Producing Membranes
Method for Nitrating and Aminating an Aryl Polymer
Novel Blend Polymer Membranes for Use in Fuel Cells
Related Assignments
(25)
Other recorded transfers of the patents in this record — the chain of ownership.
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.
Feb 12, 1990
From: JAFFE, MICHAEL
To: CELANESE CORPORATION, 10036, A CORP. OF DE.
Reel/Frame 005230/0829 →
Assignment of Assignors Interest.
Feb 12, 1990
From: JAFFE, MICHAEL
To: HOECHST CELANSE CORPORATION, A CORP. OF DE.
Reel/Frame 005230/0825 →
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.
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 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
Jun 9, 1993
From: HELMER-METZMANN, FREDDY; OSAN, FRANK
To: HOECHST AKTIENGESELLSCHAFT
Reel/Frame 006594/0489 →
Assignment of Assignor's Interest
Aug 9, 1993
From: HELMER-METZMANN, FREDDY; OSAN, FRANK; SCHNELLER, ARNOLD; RITTER, HELMUT
To: HOECHST AKTIENGESELLSCHAFT
Reel/Frame 006666/0372 →
Assignment of Assignor's Interest
May 5, 1994
From: WAGENER, REINHARD; HELMER-METZMANN, FREDDY; HERRMANN-SCHONHERR, OTTO
To: HOECHST AKTIENGESELLSCHAFT
Reel/Frame 006996/0284 →
Assignment of Assignor's Interest
Jun 4, 1996
From: SAMSONE,MICHAEL J.; ONORATO, FRANK J.; OGATA, NAOYA
To: HOECHST CELANESE CORPORATION
Reel/Frame 007980/0835 →
Assignment of Assignor's Interest
Nov 24, 1998
From: HOECHST CELANESE CORPORATION
To: HOECHST AKTIENGESELLSCHAFT
Reel/Frame 009534/0163 →
Assignment of Assignor's Interest
Nov 24, 1998
From: HOECHST CELANESE CORPORATION
To: HOECHST AKTIENGESELLSCHAFT
Reel/Frame 009534/0709 →
Assignment of Assignor's Interest
Nov 24, 1998
From: HOECHST CELANESE CORPORATION
To: HOECHST AKTIENGESELLSCHAFT
Reel/Frame 009534/0168 →
Assignment of Assignor's Interest
Nov 24, 1998
From: HOECHST CELANESE CORPORATION
To: HOECHST AKTIENGESELLSCHAFT
Reel/Frame 009534/0147 →
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: AVENTIS PHARMA DEUTSCHLAND GMBH
To: CELANESE VENTURES GMBH
Reel/Frame 017223/0711 →
Assignment of Assignor's Interest
Nov 18, 2005
From: HOECHST AG
To: AVENTIS PHARMA DEUTSCHLAND
Reel/Frame 017240/0846 →