Paul J. Schmidt

Person

Sharonville, OH, US

People

Patents Grantslast 30 patents

Information Patent Grant
Substituted phthalides
- Patent number 4,732,991
- Issue date Mar 22, 1988
- Hilton-Davis Chemical Co.
- Paul J. Schmidt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
9-julolidinyl derivatives and process of preparing them
- Patent number 4,697,018
- Issue date Sep 29, 1987
- The Hilton-Davis Chemical Co.
- Paul J. Schmidt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Marking systems
- Patent number 4,688,059
- Issue date Aug 18, 1987
- The Hilton-Davis Chemical Co.
- Paul J. Schmidt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
3-(ether and thioether)-3-(indolyl)-phthalides
- Patent number 4,661,605
- Issue date Apr 28, 1987
- The Hilton-Davis Chemical Co.
- Paul J. Schmidt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Compositions, process and systems
- Patent number 4,636,820
- Issue date Jan 13, 1987
- The Hilton-Davis Chemical
- Paul J. Schmidt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Substituted indoles
- Patent number 4,618,684
- Issue date Oct 21, 1986
- The Hilton-Davis Chemical Co.
- Paul J. Schmidt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
3-(substituted phenyl)phthalides
- Patent number 4,595,768
- Issue date Jun 17, 1986
- The Hilton-Davis Chemical Co.
- Paul J. Schmidt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Bis phenyl (2 carboxylic acid or ester indol-3-yl)methanes
- Patent number 4,558,137
- Issue date Dec 10, 1985
- The Hilton-Davis Chemical Co.
- Paul J. Schmidt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Certain 4-substituted-2,6-bis(heteroaryl)pyridines
- Patent number 4,540,790
- Issue date Sep 10, 1985
- The Hilton-Davis Chemical Co.
- Paul J. Schmidt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Compounds, processes and marking systems
- Patent number 4,539,579
- Issue date Sep 3, 1985
- The Hilton-Davis Chemical Co.
- Paul J. Schmidt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
3(Ether and thioether) 3-(4-dialkylaminophenyl) phthalides
- Patent number 4,535,172
- Issue date Aug 13, 1985
- The Hilton-Davis Chemical Co.
- Paul J. Schmidt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing 2-[bis(aryl)methyl]benzoic acids
- Patent number 4,528,136
- Issue date Jul 9, 1985
- The Hilton-Davis Chemical Co.
- Paul J. Schmidt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
5'/6'-Carboxyfluorans and derivatives thereof
- Patent number 4,515,971
- Issue date May 7, 1985
- Hilton-Davis Chemical Co.
- Paul J. Schmidt
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
3-[(Substituted-amino)(thienyl)methyl]-1H-indoles
- Patent number 4,507,483
- Issue date Mar 26, 1985
- The Hilton-Davis Chemical Co.
- Paul J. Schmidt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Compounds, processes and marking systems
- Patent number 4,494,989
- Issue date Jan 22, 1985
- The Hilton-Davis Chemical Co.
- Paul J. Schmidt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
3[(Alkoxy)(4-aminophenyl, 1-naphthyl or 1-biphenylyl)methyl]1H-indoles
- Patent number 4,485,242
- Issue date Nov 27, 1984
- Sterling Drug Inc.
- Paul J. Schmidt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
4-(3-Indolyl)-2,3-dichloro-4-oxo-2-butenoic acids
- Patent number 4,477,676
- Issue date Oct 16, 1984
- The Hilton-Davis Chemical Co.
- Nathan N. Crounse
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
3,5- And 5,5-bis(3-indolyl)-2-(5H)furanones
- Patent number 4,451,657
- Issue date May 29, 1984
- The Hilton-Davis Chemical Co.
- Nathan N. Crounse
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
4-Aryl-bis 2,6-(aminophenyl)pyridines
- Patent number 4,446,321
- Issue date May 1, 1984
- Sterling Drug Inc.
- Paul J. Schmidt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
3-(Pyrrolo and 3-indolyl)-3-diphenylamino substituted phthalides
- Patent number 4,431,819
- Issue date Feb 14, 1984
- Sterling Drug Inc.
- Paul J. Schmidt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Diphenylamino and indolyl substituted pyromellitides
- Patent number 4,417,059
- Issue date Nov 22, 1983
- Sterling Drug Inc.
- Paul J. Schmidt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
5/6 Carboxyphthalides
- Patent number 4,414,399
- Issue date Nov 8, 1983
- Sterling Drug Inc.
- Paul J. Schmidt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Carbonless duplicating and marking systems
- Patent number 4,403,791
- Issue date Sep 13, 1983
- Sterling Drug Inc.
- Paul J. Schmidt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the production of substituted aminophthalides
- Patent number 4,399,291
- Issue date Aug 16, 1983
- Sterling Drug Inc.
- Paul J. Schmidt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
3-[(Substituted-amino)(aryl)methyl]-1H-indoles
- Patent number 4,398,030
- Issue date Aug 9, 1983
- Sterling Drug Inc.
- Paul J. Schmidt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
2,6-Bis(heteroaryl)pyridines
- Patent number 4,396,767
- Issue date Aug 2, 1983
- Sterling Drug Inc.
- Paul J. Schmidt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
2,4 Bis(2-indolyl-3)-4-oxobutanoic acids
- Patent number 4,377,698
- Issue date Mar 22, 1983
- Sterling Drug Inc.
- Nathan N. Crounse
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Pyridine color formers
- Patent number 4,363,503
- Issue date Dec 14, 1982
- Sterling Drug Inc.
- Paul J. Schmidt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
2-[(3-Indolyl)carbonyl]-4/5-carboxybenzoic acids
- Patent number 4,351,768
- Issue date Sep 28, 1982
- Sterling Drug Inc.
- Nathan N. Crounse
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Duplicating and marking systems
- Patent number 4,343,493
- Issue date Aug 10, 1982
- Sterling Drug Inc.
- Paul J. Schmidt
- C07 - ORGANIC CHEMISTRY

Paul J. Schmidt

Person

Patents Grantslast 30 patents

Substituted phthalides

9-julolidinyl derivatives and process of preparing them

Marking systems

3-(ether and thioether)-3-(indolyl)-phthalides

Compositions, process and systems

Substituted indoles

3-(substituted phenyl)phthalides

Bis phenyl (2 carboxylic acid or ester indol-3-yl)methanes

Certain 4-substituted-2,6-bis(heteroaryl)pyridines

Compounds, processes and marking systems

3(Ether and thioether) 3-(4-dialkylaminophenyl) phthalides

Process for preparing 2-[bis(aryl)methyl]benzoic acids

5'/6'-Carboxyfluorans and derivatives thereof

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

Compounds, processes and marking systems

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

4-(3-Indolyl)-2,3-dichloro-4-oxo-2-butenoic acids

3,5- And 5,5-bis(3-indolyl)-2-(5H)furanones

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

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

Diphenylamino and indolyl substituted pyromellitides

5/6 Carboxyphthalides

Carbonless duplicating and marking systems

Process for the production of substituted aminophthalides

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

2,6-Bis(heteroaryl)pyridines

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

Pyridine color formers

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

Duplicating and marking systems