Inventor · disambiguated record
Engelbert Ciganek
Also filed as: CIGANEK ENGELBERT
19 granted patents·133 citations·filing 1974–1994
93Inventor score
Top patents by PatentIndex Score
19 records- 0190US4415736ACertain tetrahydropyridine intermediatesDU PONT·Filed 1981·Granted Nov 15, 1983·24 cites·1 claims
- 0289US4485109A4-Aryl-4-piperidinecarbinolsDU PONT·Filed 1983·Granted Nov 27, 1984·24 cites·15 claims
- 0378US4243668AOctahydro-1H-benzo[4,5]furo[3,2-e]-isoquinoline analgesic and narcotic antagonistic compoundsDU PONT·Filed 1979·Granted Jan 6, 1981·9 cites·39 claims
- 0476US5086063A4-aryl-4-piperidine (or pyrrolidine or hexahydroazepine) carbinols and heterocyclic analogs thereofDU PONT MERCK PHARMA·Filed 1989·Granted Feb 4, 1992·13 cites·16 claims
- 0574US5216018AHydroisoindolines and hydroisoquinolines as psychotropicDU PONT MERCK PHARMA·Filed 1992·Granted Jun 1, 1993·14 cites·26 claims
- 0664US5409929AHydroisoindolines and hydroisoquinolines as psychotropic drugsDU PONT MERCK PHARMA·Filed 1993·Granted Apr 25, 1995·7 cites·15 claims
- 0763US4477456AOctahydro-4A,7-ethano- and -etheno-benzofuro[3,2-e]isoquinoline derivatives having analgesic, narcotic antagonist and anorexigenic propertiesDU PONT·Filed 1982·Granted Oct 16, 1984·5 cites·11 claims
- 0861US5019650A4-aryl-4-piperidine (or pyrrolidine or hexahydroazepine) carbinols and heterocyclic analogs thereofDU PONT·Filed 1989·Granted May 28, 1991·6 cites·19 claims
- 0956US5356906A(N-phthalimidoalkyl) piperidines useful as treatments for psychosisDU PONT MERCK PHARMA·Filed 1992·Granted Oct 18, 1994·12 cites·10 claims
- 1055US4751306AImide intermediates for the preparation of analgesic and/or antagonist octahydrobenzofuroisoquinolinesDU PONT·Filed 1985·Granted Jun 14, 1988·6 cites·13 claims
- 1146US4767764AAlkoxyalkyl and alkylmercaptoalkyl substituted bridged benzofuroisoquinolines having opioid antagonist and/or appetite-controlling propertiesDU PONT·Filed 1986·Granted Aug 30, 1988·4 cites·39 claims
- 1241US5480892A(N-phthalimidoalkyl)piperidinesDU PONT MERCK PHARMA·Filed 1994·Granted Jan 2, 1996·4 cites·21 claims
- 1341US4076830AAlkylmethanodibenzocycloheptapyrrolesDU PONT·Filed 1976·Granted Feb 28, 1978·1 cites·27 claims
- 1440US4088772AMethanodibenzocycloheptapyrrolesDU PONT·Filed 1976·Granted May 9, 1978·1 cites·43 claims
- 1538US4077977AEthenoanthracenesDU PONT·Filed 1976·Granted Mar 7, 1978·1 cites·11 claims
- 1635US5306821AProcess for the preparation of tertiary carbinaminesDU PONT MERCK PHARMA·Filed 1992·Granted Apr 26, 1994·1 cites·14 claims
- 1735US4260761AIntermediates for the preparation of octahydro-1H-benzo[4,5]furo[3,2,-e]-isoquinoline analgesic and narcotic antagonistic compoundsDU PONT·Filed 1980·Granted Apr 7, 1981·1 cites·5 claims
- 1834US4579952AIntermediates for octahydrobenzofuro[3,2-e]isoquinolinesDU PONT·Filed 1983·Granted Apr 1, 1986·0 cites·1 claims
- 1934US3954865AN-cycloalkyl substituted-10,11-dihydro 5H-dibenzo[a,d] cyclohepten-5-iminesDU PONT·Filed 1974·Granted May 4, 1976·0 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →