EC

Engelbert Ciganek

EA E.I. Du Pont De Nemours And: 9 patents #805 of 8,010Top 15%
DP Dupont Merck Pharmaceutical: 6 patents #14 of 228Top 7%
📍 Kennett Square, PA: #42 of 289 inventorsTop 15%
🗺 Pennsylvania: #4,940 of 74,527 inventorsTop 7%
Overall (All Time): #328,629 of 4,157,543Top 8%
15
Patents All Time

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDate
5480892 (N-phthalimidoalkyl)piperidines Sang William Tam, Ann Sorrentino Wright 1996-01-02
5409929 Hydroisoindolines and hydroisoquinolines as psychotropic drugs 1995-04-25
5356906 (N-phthalimidoalkyl) piperidines useful as treatments for psychosis Sang William Tam, Ann Sorrentino Wright 1994-10-18
5306821 Process for the preparation of tertiary carbinamines 1994-04-26
5216018 Hydroisoindolines and hydroisoquinolines as psychotropic 1993-06-01
5086063 4-aryl-4-piperidine (or pyrrolidine or hexahydroazepine) carbinols and heterocyclic analogs thereof Leonard Cook 1992-02-04
5019650 4-aryl-4-piperidine (or pyrrolidine or hexahydroazepine) carbinols and heterocyclic analogs thereof Leonard Cook 1991-05-28
4767764 Alkoxyalkyl and alkylmercaptoalkyl substituted bridged benzofuroisoquinolines having opioid antagonist and/or appetite-controlling properties 1988-08-30
4751306 Imide intermediates for the preparation of analgesic and/or antagonist octahydrobenzofuroisoquinolines Bet-key Wong 1988-06-14
4579952 Intermediates for octahydrobenzofuro[3,2-e]isoquinolines Ashokkumar B. Shenvi 1986-04-01
4485109 4-Aryl-4-piperidinecarbinols 1984-11-27
4477456 Octahydro-4A,7-ethano- and -etheno-benzofuro[3,2-e]isoquinoline derivatives having analgesic, narcotic antagonist and anorexigenic properties 1984-10-16
4415736 Certain tetrahydropyridine intermediates Ashokkumar B. Shenvi 1983-11-15
4260761 Intermediates for the preparation of octahydro-1H-benzo[4,5]furo[3,2,-e]-isoquinoline analgesic and narcotic antagonistic compounds 1981-04-07
4243668 Octahydro-1H-benzo[4,5]furo[3,2-e]-isoquinoline analgesic and narcotic antagonistic compounds 1981-01-06