P

Inventor

WESSLING RITCHIE A

US86 patents
⚠️ This page may combine multiple inventors who share the name “WESSLING RITCHIE A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DOW CHEMICAL CO

33 patents
US4797187AJan 10, 1989

Semi-permeable membranes prepared via reaction of cationic groups with nucleophilic groups

DOW CHEMICAL CO142 citations98
US4704324ANov 3, 1987

Semi-permeable membranes prepared via reaction of cationic groups with nucleophilic groups

DOW CHEMICAL CO154 citations98
US4769148ASep 6, 1988

Novel polyamide reverse osmosis membranes

DOW CHEMICAL CO139 citations97
US4643940AFeb 17, 1987

Low density fiber-reinforced plastic composites

DOW CHEMICAL CO245 citations97
US4957817ASep 18, 1990

Film, fiber, and microporous membranes of poly(etheretherketone)dissolved in high boiling point polar organic solvents

DOW CHEMICAL CO63 citations96
US4868222ASep 19, 1989

Preparation of asymmetric membranes by the solvent extraction of polymer components from polymer blends

DOW CHEMICAL CO52 citations96
US5679133AOct 21, 1997

Gas separations utilizing glassy polymer membranes at sub-ambient temperatures

DOW CHEMICAL CO45 citations95
US5405661AApr 11, 1995

Fire resistant panel

DOW CHEMICAL CO55 citations95
US5352272AOct 4, 1994

Gas separations utilizing glassy polymer membranes at sub-ambient temperatures

DOW CHEMICAL CO66 citations95
US4992485AFeb 12, 1991

Microporous peek membranes and the preparation thereof

DOW CHEMICAL CO66 citations95
US4904385AFeb 27, 1990

Porous filter media and membrane support means

DOW CHEMICAL CO73 citations95
US4839203AJun 13, 1989

Semi-permeable membranes prepared via reaction of cationic groups with nucleophilic groups

DOW CHEMICAL CO87 citations95
US5246647ASep 21, 1993

Process of making microporous hollow fiber or film membrane of poly(phenylene sulfide) (PPS)

DOW CHEMICAL CO66 citations94
US5164131ANov 17, 1992

Methods for synthesizing pulps and short fibers containing polybenzazole polymers

DOW CHEMICAL CO22 citations93
US4426489AJan 17, 1984

Surface active polymeric surfactants containing side chain hydrophobes

DOW CHEMICAL CO38 citations93
US4426470AJan 17, 1984

Aqueous method of making reinforced composite material from latex, solid polymer and reinforcing material

DOW CHEMICAL CO114 citations93
US5552221ASep 3, 1996

Polybenzazole fibers having improved tensile strength retention

DOW CHEMICAL CO40 citations92
US4927540AMay 22, 1990

Ionic complex for enhancing performance of water treatment membranes

DOW CHEMICAL CO41 citations92
US4909943AMar 20, 1990

Rejection enhancing coatings for reverse osmosis membranes

DOW CHEMICAL CO52 citations92
US4894165AJan 16, 1990

Rejection enhancing coatings for reverse osmosis membranes

DOW CHEMICAL CO26 citations92
US4828700AMay 9, 1989

Rejection enhancing coatings for reverse osmosis membranes

DOW CHEMICAL CO25 citations92
US4337185AJun 29, 1982

Process for making cationic structured particle latexes using reactive polymeric surfactants

DOW CHEMICAL CO113 citations92
US4189345AFeb 19, 1980

Fibrous compositions

DOW CHEMICAL CO31 citations92
US4056501ANov 1, 1977

Cationic structured-particle latexes

DOW CHEMICAL CO50 citations92
US5787686AAug 4, 1998

Amphipathic graft copolymer pesticide formulation compositions and methods of their use

DOW CHEMICAL CO20 citations91
US4323531AApr 6, 1982

Process for forming a plastic article

DOW CHEMICAL CO39 citations91
US3965032AJun 22, 1976

Colloidally stable dispersions

DOW CHEMICAL CO37 citations90
US5034026AJul 23, 1991

Polybenzazole polymers containing indan moieties

DOW CHEMICAL CO21 citations82
US4427819AJan 24, 1984

Anionic structured particle latexes

DOW CHEMICAL CO16 citations82
US4225407ASep 30, 1980

Cathodic electrodeposition of polymers onto a conductive surface

DOW CHEMICAL CO22 citations82
US4017442AApr 12, 1977

Structured-particle latexes

DOW CHEMICAL CO29 citations82
US4352766AOct 5, 1982

Scrapless forming of plastic articles

DOW CHEMICAL CO20 citations81
US4002586AJan 11, 1977

Method for preparing cationic latexes

DOW CHEMICAL CO20 citations81

UNIV CALIFORNIA

3 patents

GLUMETRICS INC

3 patents

MARKLE DAVID R

3 patents

DOWELANCO

2 patents

GAMSEY SOYA

2 patents

CYNARA CO

1 patent

FILMTEC CORP

1 patent

SINGARAM BAKTHAN

1 patent

SURI JEFF T

1 patent

Showing the top 50 of 86 patents by PatentIndex Score.