Roger T. Clark

Person

Pottstown, PA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Process for selectively preparing organic trisulfides
- Patent number 5,442,123
- Issue date Aug 15, 1995
- Elf Atochem North America, Inc.
- Emmanuel F. Arretz
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of an alumina trihyorate catalyst
- Patent number 5,405,820
- Issue date Apr 11, 1995
- Elf Atochem North America, Inc.
- Roger T. Clark
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Process for removing sulfur from organic sulfides
- Patent number 5,312,992
- Issue date May 17, 1994
- Elf Atochem North America, Inc.
- Roger T. Clark
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Selective synthesis of mercaptans and catalyst therefor
- Patent number 5,283,369
- Issue date Feb 1, 1994
- Elf Atochem North America, Inc.
- Roger T. Clark
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Process for removing sulfur from organic sulfides
- Patent number 5,091,593
- Issue date Feb 25, 1992
- Atochem North America, Inc.
- Michael J. Lindstrom
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing amines from olefins with ammonium halide cata...
- Patent number 4,827,031
- Issue date May 2, 1989
- Pennwalt Corporation
- David M. Gardner
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Purification of organosulfonyl halides
- Patent number 4,683,090
- Issue date Jul 28, 1987
- Pennwalt Corporation
- Roger T. Clark
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Catalyst pellets with resin binder for decomposition of hypochlorite
- Patent number RE32392
- Issue date Apr 7, 1987
- Pennwalt Corporation
- Roger T. Clark
- 502 - Catalyst, solid sorbent, or support therefor: product or process of making
Information Patent Grant
Preparation of amines from olefins using certain transition metal c...
- Patent number 4,454,321
- Issue date Jun 12, 1984
- Pennwalt Corporation
- David M. Gardner
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Catalyst pellets with resin binder for decomposition of hypochlorite
- Patent number 4,400,304
- Issue date Aug 23, 1983
- Pennwalt Corporation
- Roger T. Clark
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Catalytic process for preparing ethyl amines
- Patent number 4,255,357
- Issue date Mar 10, 1981
- Pennwalt Corporation
- David A. Gardner
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Roger T. Clark

Person

Patents Grantslast 30 patents

Process for selectively preparing organic trisulfides

Process for the preparation of an alumina trihyorate catalyst

Process for removing sulfur from organic sulfides

Selective synthesis of mercaptans and catalyst therefor

Process for removing sulfur from organic sulfides

Process for preparing amines from olefins with ammonium halide cata...

Purification of organosulfonyl halides

Catalyst pellets with resin binder for decomposition of hypochlorite

Preparation of amines from olefins using certain transition metal c...

Catalyst pellets with resin binder for decomposition of hypochlorite

Catalytic process for preparing ethyl amines