Inventor
ONG HELEN H
US52 patents
⚠️ This page may combine multiple inventors who share the name “ONG HELEN H”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HOECHST ROUSSEL PHARMA
35 patentsUS4436748AMar 13, 1984
Benzo[b]thiophenes
HOECHST ROUSSEL PHARMA23 citations82
US4409229AOct 11, 1983
Antidepressive and tranquilizing substituted 1,3-dihydrospiro[benzo(c)thiophene]s
HOECHST ROUSSEL PHARMA25 citations82
US4771052ASep 13, 1988
Tetrahydropyrido[3',4':4,5]pyrrolo[2,3-c]quinolines and their use as hypotensive agents
HOECHST ROUSSEL PHARMA8 citations74
US4524207AJun 18, 1985
Process for preparing substituted 1,3-dihydrospiro[benzo(c)thiophene]s
HOECHST ROUSSEL PHARMA8 citations73
US4743601AMay 10, 1988
Dihydro-1,4-oxazino(2,3-C)quinolines
HOECHST ROUSSEL PHARMA10 citations70
US4769472ASep 6, 1988
Intermediate thieno-isoxazoles and -pyrazoles and 5-benzoyl-4-bromothiophenes
HOECHST ROUSSEL PHARMA6 citations69
US4728651AMar 1, 1988
Antihypertensive thieno-isoxazoles and -pyrazoles
HOECHST ROUSSEL PHARMA12 citations69
US5149813ASep 22, 1992
Process for (1,2,3,4-tetrahydro-9-acridinimino)cyclohexane carboxylic acid and related compounds
HOECHST ROUSSEL PHARMA2 citations63
US4999358AMar 12, 1991
(1,2,3,4-tetrahydro-9-acridinimino)cyclohexane carboxylic acid and related compounds
HOECHST ROUSSEL PHARMA4 citations63
US5440048AAug 8, 1995
1-piperazinyl-2-butenes and -2-butynes
HOECHST ROUSSEL PHARMA2 citations62
US5334715AAug 2, 1994
1-piperazinyl-2-butenes and -2-butynes
HOECHST ROUSSEL PHARMA2 citations62
US5216178AJun 1, 1993
Process of reducing olefins
HOECHST ROUSSEL PHARMA2 citations62
US5140027AAug 18, 1992
Aminoalkylthiodibenzoxepins and pharmaceutical use
HOECHST ROUSSEL PHARMA2 citations62
US5130315AJul 14, 1992
1-piperazinyl-2-butenes and -2-butynes
HOECHST ROUSSEL PHARMA4 citations62
US4668695AMay 26, 1987
Aminoalkylthiodibenzothiepins
HOECHST ROUSSEL PHARMA3 citations62
US5514700AMay 7, 1996
Substituted 1,2,3,4-tetrahydrocyclopent b!indoles, compositions and use
HOECHST ROUSSEL PHARMA3 citations61
US5472975ADec 5, 1995
Substituted 1,2,3,4-tetrahydrocyclopent[b]indoles, 1,2,3,3a,4,8a-hexahydrocyclopent[b]indoles and related compounds
HOECHST ROUSSEL PHARMA3 citations61
US5298626AMar 29, 1994
Select cyclopent[b]indoles
HOECHST ROUSSEL PHARMA2 citations61
US5192789AMar 9, 1993
Substituted 1,2,3,4-tetrahydrocyclopent[b]indoles, 1,2,3,3a,4,8a-hexahydrocyclopent[b]indoles and related compounds
HOECHST ROUSSEL PHARMA5 citations61
US5100891AMar 31, 1992
Substituted 1,2,3,4-tetrahydrocyclopent[b]indoles, 1,2,3,3a,4,8a-hexahydrocyclopent[B]indoles and related compounds
HOECHST ROUSSEL PHARMA6 citations61
US5126449AJun 30, 1992
(1,2,3,4-Tetrahydro-9-acridinimino)cyclohexane carboxylic acid and related compounds
HOECHST ROUSSEL PHARMA0 citations52
US5089615AFeb 18, 1992
Compound, 5,6,7,8-tetrahydro-1-(1,2,3,4-acridin-9-yl)-2H-3,1-benzoxazine-2,4-(1H)dione
HOECHST ROUSSEL PHARMA0 citations52
US5006664AApr 9, 1991
Aminoalkylthiodibenzothiepins and related compounds
HOECHST ROUSSEL PHARMA0 citations52
US4837227AJun 6, 1989
Aminoalkylthiodibenzoxepins and pharmaceutical use
HOECHST ROUSSEL PHARMA1 citations52
US4775682AOct 4, 1988
Haloalkylthiodibenzothiepins
HOECHST ROUSSEL PHARMA0 citations52
US4775672AOct 4, 1988
Aminoalkylthiodibenzothiepins
HOECHST ROUSSEL PHARMA0 citations52
US4775683AOct 4, 1988
Aminoalkylthiodibenzothiepins
HOECHST ROUSSEL PHARMA0 citations52
US4771069ASep 13, 1988
Aminoalkylthiodibenzothiepins
HOECHST ROUSSEL PHARMA0 citations52
US4766143AAug 23, 1988
Haloalkylthiodibenzothiepins
HOECHST ROUSSEL PHARMA1 citations52
US4672138AJun 9, 1987
Phenyl substituted carbamothioic acid esters
HOECHST ROUSSEL PHARMA0 citations52
US4537976AAug 27, 1985
Benzo[b]thiophenes
HOECHST ROUSSEL PHARMA0 citations52
US4528399AJul 9, 1985
Benzo[b]thiophenes intermediates
HOECHST ROUSSEL PHARMA1 citations52
US5182275AJan 26, 1993
Dihydro-4(hydroxyalkyeneamino)quinolines
HOECHST ROUSSEL PHARMA0 citations49
US4942168AJul 17, 1990
Hydroxyquinoline amines, and method of enhancing memory in mammals
HOECHST ROUSSEL PHARMA1 citations49
US4496582AJan 29, 1985
Analgesic dibenz[b,f]oxepins
HOECHST ROUSSEL PHARMA0 citations48
HOECHST CO AMERICAN
15 patentsUS4198417AApr 15, 1980
Phenoxyphenylpiperidines
HOECHST CO AMERICAN85 citations96
US4241071ADec 23, 1980
Antidepressant (α-phenyl-2-tolyl)azacycloalkanes
HOECHST CO AMERICAN67 citations95
US4198419AApr 15, 1980
Phenylthiophenylpiperidines
HOECHST CO AMERICAN24 citations82
US4307235ADec 22, 1981
Spiro[indoline-3,4'-piperidine]s
HOECHST CO AMERICAN11 citations74
US4209625AJun 24, 1980
Spiro[indoline-3,4'-piperidine]s
HOECHST CO AMERICAN18 citations74
US4477667AOct 16, 1984
Spiro[indoline-3,4'-piperidine]s and related compounds
HOECHST CO AMERICAN3 citations63
US4379933AApr 12, 1983
Process for preparing spiro[indoline-3,4'-piperidine]s
HOECHST CO AMERICAN5 citations63
US4345081AAug 17, 1982
Spiro[indoline-3,4'-piperidine]s
HOECHST CO AMERICAN5 citations63
US4198418AApr 15, 1980
Spiro[dibenz(b,f)oxepin-piperidine]s
HOECHST CO AMERICAN3 citations63
US4198420AApr 15, 1980
Spiro[dibenz(b,f)thiepin-piperidine]s
HOECHST CO AMERICAN5 citations63
US3957828AMay 18, 1976
3-Aminoalkyl-1,3-dihydro-3-phenylspiro[isobenzofurans]
HOECHST CO AMERICAN4 citations62
US4408050AOct 4, 1983
Spiro(indoline-3,4'-piperidine) and related compounds
HOECHST CO AMERICAN1 citations52
US4379932AApr 12, 1983
Process for preparing spiro[indoline-3,4'-piperidine]s
HOECHST CO AMERICAN0 citations52
US4414219ANov 8, 1983
Antidepressant (α-phenyl-2-tolyl)azacycloalkanols and derivatives thereof
HOECHST CO AMERICAN1 citations51
US4311703AJan 19, 1982
Antidepressant and tranquilizing (α-phenyl-2-tolyl)-azacycloalkenes
HOECHST CO AMERICAN1 citations51
Showing the top 50 of 52 patents by PatentIndex Score.