P

Inventor

WALLS JOHN E

US59 patents
⚠️ This page may combine multiple inventors who share the name “WALLS JOHN E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HOECHST CO AMERICAN

29 patents
US4383897AMay 17, 1983

Electrochemically treated metal plates

HOECHST CO AMERICAN60 citations96
US4502925AMar 5, 1985

Process for aluminum surface preparation

HOECHST CO AMERICAN39 citations93
US4308340ADec 29, 1981

Aqueous 2-propoxyethanol containing processing composition for lithographic printing plates

HOECHST CO AMERICAN30 citations93
US4665124AMay 12, 1987

Resin

HOECHST CO AMERICAN34 citations92
US4652604AMar 24, 1987

Radiation-polymerizable composition and element containing a photopolymer composition

HOECHST CO AMERICAN25 citations92
US4452674AJun 5, 1984

Electrolytes for electrochemically treated metal plates

HOECHST CO AMERICAN43 citations92
US4448647AMay 15, 1984

Electrochemically treated metal plates

HOECHST CO AMERICAN44 citations92
US4399021AAug 16, 1983

Novel electrolytes for electrochemically treated metal plates

HOECHST CO AMERICAN40 citations92
US4772538ASep 20, 1988

Water developable lithographic composition

HOECHST CO AMERICAN40 citations90
US4435496AMar 6, 1984

Photopolymer cleavage imaging system

HOECHST CO AMERICAN42 citations90
US4436804AMar 13, 1984

Light-sensitive polymeric diazonium condensates and reproduction compositions and materials therewith

HOECHST CO AMERICAN21 citations82
US4388156AJun 14, 1983

Aluminum electrolysis in non-aqueous monomeric organic acid

HOECHST CO AMERICAN21 citations82
US4376814AMar 15, 1983

Ceramic deposition on aluminum

HOECHST CO AMERICAN20 citations82
US4374710AFeb 22, 1983

Electrolytic graining of aluminum with nitric and oxalic acids

HOECHST CO AMERICAN19 citations82
US4355096AOct 19, 1982

Process for heating exposed and developed light-sensitive lithographic printing plates with carboxylic acid and amine moiety containing compounds on surface thereof

HOECHST CO AMERICAN20 citations82
US4336113AJun 22, 1982

Electrolytic graining of aluminum with hydrogen peroxide and nitric or hydrochloric acid

HOECHST CO AMERICAN27 citations79
US4670507AJun 2, 1987

Resin

HOECHST CO AMERICAN16 citations74
US4448873AMay 15, 1984

Negative working diazo contact film

HOECHST CO AMERICAN9 citations74
US4436807AMar 13, 1984

Developer composition with sodium, lithium and/or potassium salts for developing negative working imaged photographic material

HOECHST CO AMERICAN14 citations74
US4396468AAug 2, 1983

Three phase graining of aluminum substrates

HOECHST CO AMERICAN11 citations74
US4381340AApr 26, 1983

Method of treating lithographic printing plates with 2-propoxyethanol

HOECHST CO AMERICAN16 citations74
US4351895ASep 28, 1982

Deletion fluid for positive printing plates

HOECHST CO AMERICAN16 citations74
US4618562AOct 21, 1986

Aqueous developable lithographic printing plates containing an admixture of diazonium salts and polymers and composition therefor

HOECHST CO AMERICAN10 citations73
US4213887AJul 22, 1980

Lithographic plate finisher

HOECHST CO AMERICAN11 citations73
US4533620AAug 6, 1985

Light sensitive co-condensates

HOECHST CO AMERICAN16 citations72
US4414311ANov 8, 1983

Cathodic deposition of light sensitive components

HOECHST CO AMERICAN9 citations72
US4539285ASep 3, 1985

Photosensitive negative diazo composition with two acrylic polymers for photolithography

HOECHST CO AMERICAN9 citations71
US4416972ANov 22, 1983

Electrolytic graining of aluminum with nitric and boric acids

HOECHST CO AMERICAN17 citations70
US4381226AApr 26, 1983

Electrochemical treatment of aluminum in non-aqueous polymeric polybasic organic acid containing electrolytes

HOECHST CO AMERICAN3 citations62

EASTMAN KODAK CO

12 patents
US5169897ADec 8, 1992

Binary acetal polymers useful in photosensitive compositions and lithographic printing plates

EASTMAN KODAK CO84 citations96
US5368974ANov 29, 1994

Lithographic printing plates having a hydrophilic barrier layer comprised of a copolymer of vinylphosphonic acid and acrylamide overlying an aluminum support

EASTMAN KODAK CO46 citations93
US5275907AJan 4, 1994

Photosensitive compositions and lithographic printing plates containing acid-substituted ternary acetal polymer and copolyester with reduced propensity to blinding

EASTMAN KODAK CO25 citations93
US5262270ANov 16, 1993

Photosensitive compositions and lithographic printing plates containing binary acetal polymers

EASTMAN KODAK CO38 citations93
US5061607AOct 29, 1991

Composition for protecting the surface of lithographic printing plates

EASTMAN KODAK CO26 citations93
US5035982AJul 30, 1991

Aqueous developer composition for developing negative working lithographic printing plate

EASTMAN KODAK CO33 citations93
US5316892AMay 31, 1994

Method for developing lithographic printing plates

EASTMAN KODAK CO33 citations92
US5219699AJun 15, 1993

Photosensitive compositions and lithographic printing plates containing acid-substituted ternary acetal polymers

EASTMAN KODAK CO22 citations89
US5169898ADec 8, 1992

Acid-substituted ternary acetal polymers useful in photosensitive compositions and lithographic printing plates

EASTMAN KODAK CO31 citations89
US5466559ANov 14, 1995

Aqueous developer for lithographic printing plates which exhibits reduced sludge formation

EASTMAN KODAK CO19 citations81
US5279927AJan 18, 1994

Aqueous developer for lithographic printing plates with improved desensitizing capability

EASTMAN KODAK CO16 citations73
US5342435AAug 30, 1994

Scratch remover and desensitizer composition for use with lithographic printing plates

EASTMAN KODAK CO6 citations63

HOECHST CELANESE CORP

6 patents

KODAK POLCYHROME GRAPHICS LLC

1 patent

KODAK POLYCHROME GRAPHICS LLC

1 patent

S O LITHO CORP

1 patent

Showing the top 50 of 59 patents by PatentIndex Score.