Rachel S. Kohn

Person

Springfield, NJ, US

People

Patents Grantslast 30 patents

Information Patent Grant
Coated polypropylene or polyethylene useful for membranes
- Patent number 5,614,309
- Issue date Mar 25, 1997
- Hoechst Celanese Corp.
- Tai-Shung Chung
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Pan composite membranes
- Patent number 5,320,754
- Issue date Jun 14, 1994
- Hoechst Celanese Corp.
- Rachel S. Kohn
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Enhancement of positive contrast in optical recording
- Patent number 5,232,757
- Issue date Aug 3, 1993
- Hoechst Celanese Corp.
- Palaiyur S. Kalyanaraman
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of gas separation and membranes therefor
- Patent number 5,074,891
- Issue date Dec 24, 1991
- Hoechst Celanese Corp.
- Rachel S. Kohn
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Gas separation membranes comprising miscible blends of polyimide po...
- Patent number 5,055,116
- Issue date Oct 8, 1991
- Hoechst Celanese Corp.
- Rachel S. Kohn
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Stabilization of optical information storage media by incorporation...
- Patent number 5,045,440
- Issue date Sep 3, 1991
- Hoechst Celanese Corp.
- Frank J. Onorato
- G11 - INFORMATION STORAGE
Information Patent Grant
Ultrathin polyimide polymer films and their preparation
- Patent number 4,978,573
- Issue date Dec 18, 1990
- Hoechst Celanese Corp.
- Rachel S. Kohn
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Ultrathin polyimide polymer flims and their preparation
- Patent number 4,929,405
- Issue date May 29, 1990
- Hoechst Celanese Corp.
- Rachel S. Kohn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Ultrathin polyarylate polymer films and their preparation
- Patent number 4,910,083
- Issue date Mar 20, 1990
- Hoechst Celanese Corp.
- Rachel S. Kohn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Ultrathin polyphenylene oxide polymer films and their preparation
- Patent number 4,910,082
- Issue date Mar 20, 1990
- Hoechst Celanese Corp.
- Rachel S. Kohn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Ultrathin polyether sulfone films and their preparation
- Patent number 4,908,267
- Issue date Mar 13, 1990
- Hoechst Celanese Corp.
- Rachel S. Kohn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Ultrathin cellulose ester polymer films and their preparation
- Patent number 4,908,266
- Issue date Mar 13, 1990
- Hoechst Celanese Corp.
- Rachel S. Kohn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Ultrathin blended cellulose nitrate polymer films and their prepara...
- Patent number 4,900,621
- Issue date Feb 13, 1990
- Hoechst Celanese Corporation
- Rachel S. Kohn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Ultrathin polymethylmethacrylate polymer films
- Patent number 4,900,623
- Issue date Feb 13, 1990
- Hoechst Celanese Corporation
- Rachel S. Kohn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Ultrathin polyimide polymer films and their preparation
- Patent number 4,880,699
- Issue date Nov 14, 1989
- Hoechst Celanese Corporation
- Rachel S. Kohn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Ultrathin polyether sulfone polymer films and their preparation
- Patent number 4,776,999
- Issue date Oct 11, 1988
- Hoechst Celanese Corporation
- Rachel S. Kohn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Process for preparing ultrathin polymethylmethacrylate polymer films
- Patent number 4,765,939
- Issue date Aug 23, 1988
- Hoechst Celanese Corporation
- Rachel S. Kohn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Thixotropic aqueous solutions containing a divinylsulfone-crosslink...
- Patent number 4,752,339
- Issue date Jun 21, 1988
- Hi-Tek Polymers, Inc.
- Rachel S. Kohn
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Ultrathin polyphenylene oxide polymer films and their preparation
- Patent number 4,746,476
- Issue date May 24, 1988
- Hoechst Celanese Corporation
- Rachel S. Kohn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Ultrathin polyimide polymers films and their preparation
- Patent number 4,746,474
- Issue date May 24, 1988
- Hoechst Celanese Corporation
- Rachel S. Kohn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Ultrathin blended cellulose nitrate polymer films and their prepara...
- Patent number 4,746,473
- Issue date May 24, 1988
- Hoechst Celanese Corporation
- Rachel S. Kohn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Ultrathin cellulose ester polymer films and their preparation
- Patent number 4,746,475
- Issue date May 24, 1988
- Hoechst Celanese Corporation
- Rachel S. Kohn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Ultrathin polyarylate polymer films and their preparation
- Patent number 4,746,472
- Issue date May 24, 1988
- Hoechst Celanese Corporation
- Rachel S. Kohn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Thixotropic aqueous solutions containing a crosslinked polygalactom...
- Patent number 4,549,907
- Issue date Oct 29, 1985
- Celanese Corporation
- Rachel S. Kohn
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Dry blend thickening composition containing benzoquinone and polyga...
- Patent number 4,469,620
- Issue date Sep 4, 1984
- Celanese Corporation
- Rachel S. Kohn
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Benzoquinone ether adduct of polygalactomannan gum
- Patent number 4,452,639
- Issue date Jun 5, 1984
- Celanese Corporation
- Rachel S. Kohn
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Rachel S. Kohn

Person

Patents Grantslast 30 patents

Coated polypropylene or polyethylene useful for membranes

Pan composite membranes

Enhancement of positive contrast in optical recording

Method of gas separation and membranes therefor

Gas separation membranes comprising miscible blends of polyimide po...

Stabilization of optical information storage media by incorporation...

Ultrathin polyimide polymer films and their preparation

Ultrathin polyimide polymer flims and their preparation

Ultrathin polyarylate polymer films and their preparation

Ultrathin polyphenylene oxide polymer films and their preparation

Ultrathin polyether sulfone films and their preparation

Ultrathin cellulose ester polymer films and their preparation

Ultrathin blended cellulose nitrate polymer films and their prepara...

Ultrathin polymethylmethacrylate polymer films

Ultrathin polyimide polymer films and their preparation

Ultrathin polyether sulfone polymer films and their preparation

Process for preparing ultrathin polymethylmethacrylate polymer films

Thixotropic aqueous solutions containing a divinylsulfone-crosslink...

Ultrathin polyphenylene oxide polymer films and their preparation

Ultrathin polyimide polymers films and their preparation

Ultrathin blended cellulose nitrate polymer films and their prepara...

Ultrathin cellulose ester polymer films and their preparation

Ultrathin polyarylate polymer films and their preparation

Thixotropic aqueous solutions containing a crosslinked polygalactom...

Dry blend thickening composition containing benzoquinone and polyga...

Benzoquinone ether adduct of polygalactomannan gum