P

Inventor

SCHMIDT PAUL J

US63 patents
⚠️ This page may combine multiple inventors who share the name “SCHMIDT PAUL J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

STERLING DRUG INC

29 patents
US4257954AMar 24, 1981

Novel compounds, processes and marking systems

STERLING DRUG INC45 citations93
US4307898ADec 29, 1981

Carbonless duplicating and marking systems

STERLING DRUG INC8 citations74
US4275121AJun 23, 1981

Carbonless duplicating and marking systems utilizing indolyl-substituted furanone color formers

STERLING DRUG INC5 citations74
US4251446AFeb 17, 1981

Phthalide compounds, processes and marking systems

STERLING DRUG INC7 citations74
US4189171AFeb 19, 1980

Marking systems containing 3-aryl-3-heterylphthalides and 3,3-bis(heteryl)phthalides

STERLING DRUG INC7 citations74
US4168378ASep 18, 1979

3-(9-Julolidinyl)-3-(diphenylamino)phthalides

STERLING DRUG INC8 citations74
US4094877AJun 13, 1978

Tri- or tetrasubstituted diphenylphthalides

STERLING DRUG INC7 citations74
US4446321AMay 1, 1984

4-Aryl-bis 2,6-(aminophenyl)pyridines

STERLING DRUG INC4 citations63
US4431819AFeb 14, 1984

3-(Pyrrolo and 3-indolyl)-3-diphenylamino substituted phthalides

STERLING DRUG INC4 citations63
US4403791ASep 13, 1983

Carbonless duplicating and marking systems

STERLING DRUG INC6 citations63
US4398030AAug 9, 1983

3-[(Substituted-amino)(aryl)methyl]-1H-indoles

STERLING DRUG INC2 citations63
US4377698AMar 22, 1983

2,4 Bis(2-indolyl-3)-4-oxobutanoic acids

STERLING DRUG INC2 citations63
US4363503ADec 14, 1982

Pyridine color formers

STERLING DRUG INC6 citations63
US4351768ASep 28, 1982

2-[(3-Indolyl)carbonyl]-4/5-carboxybenzoic acids

STERLING DRUG INC4 citations63
US4343493AAug 10, 1982

Duplicating and marking systems

STERLING DRUG INC2 citations63
US4337340AJun 29, 1982

Processes for preparing substituted furopyridinones and furopyrazinones

STERLING DRUG INC2 citations63
US4322352AMar 30, 1982

Indolyl phthalide compounds

STERLING DRUG INC4 citations63
US4298215ANov 3, 1981

Carbonless duplicating and marking systems

STERLING DRUG INC2 citations63
US4200313AApr 29, 1980

Carbonless duplicating systems

STERLING DRUG INC6 citations63
US4187223AFeb 5, 1980

3-[4-(Disubstituted-amino)phenyl]-3-(diphenylamino)phthalides

STERLING DRUG INC4 citations63
US4182714AJan 8, 1980

Carbazole containing phthalides

STERLING DRUG INC2 citations63
US4096176AJun 20, 1978

Benzoylbenzoic acids

STERLING DRUG INC4 citations63
US4032527AJun 28, 1977

Phenyljulolidinylphthalides

STERLING DRUG INC4 citations63
US4341402AJul 27, 1982

Systems employing indole color formers

STERLING DRUG INC5 citations54
US4485242ANov 27, 1984

3[(Alkoxy)(4-aminophenyl, 1-naphthyl or 1-biphenylyl)methyl]1H-indoles

STERLING DRUG INC0 citations52
US4414399ANov 8, 1983

5/6 Carboxyphthalides

STERLING DRUG INC1 citations52
US4396767AAug 2, 1983

2,6-Bis(heteroaryl)pyridines

STERLING DRUG INC0 citations52
US4321369AMar 23, 1982

Compositions, process and systems

STERLING DRUG INC0 citations52
US4251092AFeb 17, 1981

Pressure sensitive carbonless duplicating systems and thermal marking systems

STERLING DRUG INC1 citations52

HILTON DAVIS CHEMICAL CO

13 patents

REA MAGNET WIRE CO INC

1 patent

WALKER KURT

1 patent

HILTON DAVIS CHEMICAL

1 patent

OUTBOARD MARINE CORP

1 patent

VIASAT INC

1 patent

HUNG WILLIAM M

1 patent

SCHMIDT PAUL J

1 patent

ACCENTURE GLOBAL SERVICES LTD

1 patent

Showing the top 50 of 63 patents by PatentIndex Score.