Inventor
HAYES RICHARD A
US46 patents
⚠️ This page may combine multiple inventors who share the name “HAYES RICHARD A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DU PONT
39 patentsUS4717393AJan 5, 1988
Polyimide gas separation membranes
DU PONT168 citations99
US4717394AJan 5, 1988
Polyimide gas separation membranes
DU PONT162 citations99
US4705540ANov 10, 1987
Polyimide gas separation membranes
DU PONT173 citations99
US5085676AFeb 4, 1992
Novel multicomponent fluid separation membranes
DU PONT228 citations96
US5015270AMay 14, 1991
Phenylindane-containing polyimide gas separation membranes
DU PONT58 citations96
US4981497AJan 1, 1991
Amine-modified polyimide membranes
DU PONT73 citations96
US4880442ANov 14, 1989
Polyimide gas separation membranes
DU PONT105 citations96
US4838900AJun 13, 1989
Polyimide gas separation membranes
DU PONT56 citations96
US5178650AJan 12, 1993
Polyimide gas separation membranes and process of using same
DU PONT34 citations93
US5076817ADec 31, 1991
Polyamide gas separation membranes and process of using same
DU PONT30 citations93
US5034024AJul 23, 1991
Surfactant treatment of aromatic polyimide gas separation membranes
DU PONT30 citations93
US5032149AJul 16, 1991
Surfactant treatment of polyaramide gas separation membranes
DU PONT22 citations93
US4944775AJul 31, 1990
Preparation of poly(phenylene oxide) asymmetric gas separation membranes
DU PONT43 citations93
US4932983AJun 12, 1990
Copolyimide gas separation membranes derived from substituted methylene dianilines and unsubstituted diamines
DU PONT23 citations93
US4932982AJun 12, 1990
Copolyimide gas separation membranes derived from substituted phenylene diamines and substituted methylene dianilines
DU PONT40 citations93
US4931539AJun 5, 1990
Highly-soluble, amorphous siloxane polyimides
DU PONT48 citations93
US4912197AMar 27, 1990
Highly soluble clear polyimides
DU PONT49 citations93
US4851505AJul 25, 1989
Highly soluble aromatic polyimides
DU PONT41 citations93
US5091216AFeb 25, 1992
Reactive post treatment for gas separation membranes
DU PONT26 citations92
US4983191AJan 8, 1991
Production of aromatic polyimide membranes
DU PONT50 citations92
US4863496ASep 5, 1989
Reactive posttreatment for gas separation membranes
DU PONT31 citations92
US7759414B2Jul 20, 2010
Nanoparticulate solar control compositions
DU PONT11 citations84
US7749577B2Jul 6, 2010
High strength multilayer laminates comprising twisted nematic liquid crystals
DU PONT11 citations84
US7744970B2Jun 29, 2010
Multilayer laminates comprising twisted nematic liquid crystals
DU PONT11 citations84
US7736532B2Jun 15, 2010
Composition for reducing the transmission of infrared radiation
DU PONT9 citations82
US5322549AJun 21, 1994
Polyimides and gas separation membranes prepared therefrom
DU PONT15 citations74
US5149723ASep 22, 1992
Stabilized polyacetal compositions containing a mixture of hals having tertiary functionality
DU PONT14 citations74
US4935490AJun 19, 1990
Highly soluble aromatic polyimides
DU PONT16 citations74
US5063263ANov 5, 1991
Polyacetal compositions containing a non-meltable polymer stabilizer improved with a minor amount of at least one meltable co-stabilizer and at least one primary antioxidant
DU PONT17 citations73
US5436293AJul 25, 1995
Poly(vinyl alcohol) polymer blend textile sizes with improved ability to be desized
DU PONT5 citations72
US5405653AApr 11, 1995
Poly(vinyl alcohol)starch blends for textile sizes with improved ability to be desized
DU PONT16 citations72
US5362515ANov 8, 1994
Poly(vinyl alcohol)copolymer sizes having high capacity to be desized
DU PONT16 citations72
US5425879AJun 20, 1995
Removal of base residues from poly(vinyl alcohol) reaction-slurries
DU PONT6 citations63
US5319070AJun 7, 1994
Process for removal of ash from poly(vinyl alcohol) polymers
DU PONT4 citations63
US5232965AAug 3, 1993
Stabilized polyacetal compositions
DU PONT5 citations63
US7625627B2Dec 1, 2009
Decorative polyvinyl butyral solar control laminates
DU PONT6 citations62
US4972014ANov 20, 1990
Polyacetal compositions containing a non-meltable polymer stabilizer improved with at least one amide-containing phenolic antioxidant
DU PONT6 citations62
US7968186B2Jun 28, 2011
Glass laminates comprising acoustic interlayers and solar control films
DU PONT6 citations61
US5482747AJan 9, 1996
Poly(vinyl alcohol) polymer blend textile sizes with improved ability to be desized
DU PONT5 citations61
OLIN CORP
4 patentsUS6837165B2Jan 4, 2005
Bullet with spherical nose portion
OLIN CORP36 citations95
US7487727B2Feb 10, 2009
Bullet with spherical nose portion
OLIN CORP14 citations92
US6964232B2Nov 15, 2005
Bullet with spherical nose portion
OLIN CORP22 citations92
US7299733B2Nov 27, 2007
Bullet with spherical nose portion
OLIN CORP9 citations73