Patents Represented by Attorney Cynthia L. Stokes

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Superabsorbent crosslinked copolymers formed from an ampholytic ion pair (2-methacryloyloxyethyldimethylammonium cation (MEDMA)/sulfonate anion) copolymerized with other comonomers

Patent number: 5286827

Abstract: The present invention provides crosslinked ampholytic copolymers that are highly absorbent to aqueous electrolyte solutions.

Type: Grant

Filed: July 21, 1992

Date of Patent: February 15, 1994

Assignee: Phillips Petroleum Company

Inventor: Iqbal Ahmed
Yeast extracts from candida utilis and the production of same

Patent number: 5286630

Abstract: Yeast extracts from Candida utilis which can be used as flavor enhancers and emulsifiers are disclosed. One flavor enhancing extract and one emulsifying extract is derived from raw Candida utilis; one flavor enhancing extract and one emulsifying extract is derived from pasteurized Candida utilis.

Type: Grant

Filed: December 5, 1991

Date of Patent: February 15, 1994

Assignee: Phillips Petroleum Company

Inventors: Edward G. Schanus, Marinelle McPherson
Grafted copolymers highly absorbent to aqueous electrolyte solutions

Patent number: 5243008

Abstract: The present invention provides graft copolymers that are highly absorbent to aqueous electrolyte solutions.

Type: Grant

Filed: July 21, 1992

Date of Patent: September 7, 1993

Assignee: Phillips Petroleum Company

Inventors: Iqbal Ahmed, Henry L. Hsieh
Grafted copolymers highly absorbent to aqueous electrolyte solutions

Patent number: 5219970

Abstract: The present invention provides graft copolymers that are highly absorbent to aqueous electrolyte solutions.

Type: Grant

Filed: July 23, 1992

Date of Patent: June 15, 1993

Assignee: Phillips Petroleum Company

Inventors: Iqbal Ahmed, Henry L. Hsieh
Superabsorbent crosslinked ampholytic ion pair copolymers

Patent number: 5216098

Abstract: The present invention provides crosslinked ampholytic copolymers that are highly absorbent to aqueous electrolyte solutions.

Type: Grant

Filed: July 21, 1992

Date of Patent: June 1, 1993

Assignee: Phillips Petroleum Company

Inventors: Iqbal Ahmed, Henry L. Hsieh
Grafted copolymers highly absorbent to aqueous electrolyte solutions

Patent number: 5214117

Abstract: The present invention provides graft copolymers that are highly absorbent to aqueous electrolyte solutions.

Type: Grant

Filed: July 23, 1992

Date of Patent: May 25, 1993

Assignee: Phillips Petroleum Company

Inventors: Iqbal Ahmed, Henry L. Hsieh
Grafted copolymers highly absorbent to aqueous electrolyte solutions

Patent number: 5206326

Abstract: The present invention provides graft copolymers that are highly absorbent to aqueous electrolyte solutions.

Type: Grant

Filed: July 21, 1992

Date of Patent: April 27, 1993

Assignee: Phillips Petroleum Company

Inventors: Iqbal Ahmed, Henry L. Hsieh
Gelatin of acrylamide-containing polymers with aminobenzoic acid compounds and water dispersible aldehydes

Patent number: 5179136

Abstract: A novel composition and process are disclosed for forming crosslinked gels at elevated temperatures utilize a novel crosslinking agent comprising at least one aminobenzoic acid compound and a water dispersible aldehyde or aldehyde generating compound.

Type: Grant

Filed: September 10, 1990

Date of Patent: January 12, 1993

Assignee: Phillips Petroleum Company

Inventor: Ahmad Moradi-Araghi

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