Helen H. Ong

Person

Whippany, NJ, US

People

Patents Grantslast 30 patents

Information Patent Grant
Substituted 1,2,3,4-tetrahydrocyclopent b!indoles, compositions and...
- Patent number 5,514,700
- Issue date May 7, 1996
- Hoechst Roussel Pharmaceuticals Incorporated
- Helen H. Ong
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Substituted 1,2,3,4-tetrahydrocyclopent[b]indoles, 1,2,3,3a,4,8a-he...
- Patent number 5,472,975
- Issue date Dec 5, 1995
- Hoechst Roussel Pharmaceuticals Incorporated
- Helen H. Ong
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
1-piperazinyl-2-butenes and -2-butynes
- Patent number 5,440,048
- Issue date Aug 8, 1995
- Hoechst-Roussel Pharmaceuticals Inc.
- Helen H. Ong
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
1-piperazinyl-2-butenes and -2-butynes
- Patent number 5,334,715
- Issue date Aug 2, 1994
- Hoechst-Roussel Pharmaceuticals Inc.
- Helen H. Ong
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Select cyclopent[b]indoles
- Patent number 5,298,626
- Issue date Mar 29, 1994
- Hoechst Roussel Pharmaceuticals Incorporated
- Helen H. Ong
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process of reducing olefins
- Patent number 5,216,178
- Issue date Jun 1, 1993
- Hoechst Roussel Pharmaceuticals Incorporated
- Helen H. Ong
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
1-piperazinyl-2-butenes and -2-butynes
- Patent number 5,194,436
- Issue date Mar 16, 1993
- Hoechst-Roussel Pharmaceuticals Inc.
- Helen H. Ong
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Substituted 1,2,3,4-tetrahydrocyclopent[b]indoles, 1,2,3,3a,4,8a-he...
- Patent number 5,192,789
- Issue date Mar 9, 1993
- Hoechst Roussel Pharmaceuticals Incorporated
- Helen H. Ong
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Dihydro-4(hydroxyalkyeneamino)quinolines
- Patent number 5,182,275
- Issue date Jan 26, 1993
- Hoechst Roussel Pharmaceuticals Incorporated
- Karl Schonafinger
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for (1,2,3,4-tetrahydro-9-acridinimino)cyclohexane carboxyl...
- Patent number 5,149,813
- Issue date Sep 22, 1992
- Hoechst Roussel Pharmaceuticals Incorporated
- Lawrence L. Martin
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Aminoalkylthiodibenzoxepins and pharmaceutical use
- Patent number 5,140,027
- Issue date Aug 18, 1992
- Hoechst-Roussel Pharmaceuticals Inc.
- Helen H. Ong
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
1-piperazinyl-2-butenes and -2-butynes
- Patent number 5,130,315
- Issue date Jul 14, 1992
- Wittekind; Raymond R.
- Helen H. Ong
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
(1,2,3,4-Tetrahydro-9-acridinimino)cyclohexane carboxylic acid and...
- Patent number 5,126,449
- Issue date Jun 30, 1992
- Hoechst-Roussel Pharmaceuticals Inc.
- Lawrence L. Martin
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Substituted 1,2,3,4-tetrahydrocyclopent[b]indoles, 1,2,3,3a,4,8a-he...
- Patent number 5,100,891
- Issue date Mar 31, 1992
- Hoechst-Roussel Pharmaceuticals Inc.
- Helen H. Ong
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Compound, 5,6,7,8-tetrahydro-1-(1,2,3,4-acridin-9-yl)-2H-3,1-benzox...
- Patent number 5,089,615
- Issue date Feb 18, 1992
- Hoechst-Roussel Pharmaceuticals Inc.
- Lawrence L. Martin
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Aminoalkylthiodibenzothiepins and related compounds
- Patent number 5,006,664
- Issue date Apr 9, 1991
- Hoechst-Roussel Pharmaceuticals Inc.
- Helen H. Ong
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
(1,2,3,4-tetrahydro-9-acridinimino)cyclohexane carboxylic acid and...
- Patent number 4,999,358
- Issue date Mar 12, 1991
- Hoechst-Roussel Pharmaceuticals Inc.
- Lawrence L. Martin
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Aminoalkylthiodibenzoxepins and pharmaceutical use
- Patent number 4,943,571
- Issue date Jul 24, 1990
- Hoechst-Roussel Phamraceuticals Inc.
- Helen H. Ong
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Hydroxyquinoline amines, and method of enhancing memory in mammals
- Patent number 4,942,168
- Issue date Jul 17, 1990
- Hoechst-Roussel Pharmaceuticals Inc.
- Karl Schonafinger
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Aminoalkylthiodibenzoxepins and pharmaceutical use
- Patent number 4,837,227
- Issue date Jun 6, 1989
- Hoechst-Roussel Pharmaceuticals, Inc.
- Helen H. Ong
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Aminoalkylthiodibenzothiepins
- Patent number 4,775,672
- Issue date Oct 4, 1988
- Hoechst-Roussel Pharmaceuticals Inc.
- Helen H. Ong
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Aminoalkylthiodibenzothiepins
- Patent number 4,775,683
- Issue date Oct 4, 1988
- Hoechst-Roussel Pharmaceuticals Inc.
- Helen H. Ong
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Haloalkylthiodibenzothiepins
- Patent number 4,775,682
- Issue date Oct 4, 1988
- Hoechst-Roussel Pharmaceuticals Inc.
- Helen H. Ong
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Tetrahydropyrido[3',4':4,5]pyrrolo[2,3-c]quinolines and their use a...
- Patent number 4,771,052
- Issue date Sep 13, 1988
- Hoechst-Roussel Pharmaceuticals, Inc.
- Karl Schonafinger
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Aminoalkylthiodibenzothiepins
- Patent number 4,771,069
- Issue date Sep 13, 1988
- Hoechst-Roussel Pharmaceuticals Inc.
- Helen H. Ong
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Intermediate thieno-isoxazoles and -pyrazoles and 5-benzoyl-4-bromo...
- Patent number 4,769,472
- Issue date Sep 6, 1988
- Hoechst-Roussel Pharmaceuticals, Inc.
- Helen H. Ong
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Haloalkylthiodibenzothiepins
- Patent number 4,766,143
- Issue date Aug 23, 1988
- Hoechst-Roussel Pharmaceuticals Inc.
- Helen H. Ong
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Dihydro-1,4-oxazino(2,3-C)quinolines
- Patent number 4,743,601
- Issue date May 10, 1988
- Hoechst-Roussel Pharmaceuticals Inc.
- Karl Schonafinger
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Antihypertensive thieno-isoxazoles and -pyrazoles
- Patent number 4,728,651
- Issue date Mar 1, 1988
- Hoechst-Roussel Pharmaceuticals Inc.
- Helen H. Ong
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Phenyl substituted carbamothioic acid esters
- Patent number 4,672,138
- Issue date Jun 9, 1987
- Hoechst-Roussel Pharmaceuticals Inc.
- Helen H. Ong
- C07 - ORGANIC CHEMISTRY

Helen H. Ong

Person

Patents Grantslast 30 patents

Substituted 1,2,3,4-tetrahydrocyclopent b!indoles, compositions and...

Substituted 1,2,3,4-tetrahydrocyclopent[b]indoles, 1,2,3,3a,4,8a-he...

1-piperazinyl-2-butenes and -2-butynes

1-piperazinyl-2-butenes and -2-butynes

Select cyclopent[b]indoles

Process of reducing olefins

1-piperazinyl-2-butenes and -2-butynes

Substituted 1,2,3,4-tetrahydrocyclopent[b]indoles, 1,2,3,3a,4,8a-he...

Dihydro-4(hydroxyalkyeneamino)quinolines

Process for (1,2,3,4-tetrahydro-9-acridinimino)cyclohexane carboxyl...

Aminoalkylthiodibenzoxepins and pharmaceutical use

1-piperazinyl-2-butenes and -2-butynes

(1,2,3,4-Tetrahydro-9-acridinimino)cyclohexane carboxylic acid and...

Substituted 1,2,3,4-tetrahydrocyclopent[b]indoles, 1,2,3,3a,4,8a-he...

Compound, 5,6,7,8-tetrahydro-1-(1,2,3,4-acridin-9-yl)-2H-3,1-benzox...

Aminoalkylthiodibenzothiepins and related compounds

(1,2,3,4-tetrahydro-9-acridinimino)cyclohexane carboxylic acid and...

Aminoalkylthiodibenzoxepins and pharmaceutical use

Hydroxyquinoline amines, and method of enhancing memory in mammals

Aminoalkylthiodibenzoxepins and pharmaceutical use

Aminoalkylthiodibenzothiepins

Aminoalkylthiodibenzothiepins

Haloalkylthiodibenzothiepins

Tetrahydropyrido[3',4':4,5]pyrrolo[2,3-c]quinolines and their use a...

Aminoalkylthiodibenzothiepins

Intermediate thieno-isoxazoles and -pyrazoles and 5-benzoyl-4-bromo...

Haloalkylthiodibenzothiepins

Dihydro-1,4-oxazino(2,3-C)quinolines

Antihypertensive thieno-isoxazoles and -pyrazoles

Phenyl substituted carbamothioic acid esters