Inventor · disambiguated record
Derk Hamminga
Also filed as: HAMMINGA DERK
16 granted patents·421 citations·filing 1988–1992
95Inventor score
Top patents by PatentIndex Score
16 records- 0194US5223625AAnnelated indolo [3,2,-C]lactamsDUPHAR INT RES·Filed 1992·Granted Jun 29, 1993·68 cites·2 claims
- 0293US4985424ACertain substituted 1,7-annelated 1h-indazoles being selective antagonists of 5-ht-receptorsDUPHAR INT RES·Filed 1990·Granted Jan 15, 1991·54 cites·3 claims
- 0392US5328905A8,9-anellated-1,2,3,4-tetrahydro-β-carboline derivativesDUPHAR INT RES·Filed 1991·Granted Jul 12, 1994·58 cites·3 claims
- 0489US5037844ASubstituted 1H-indazole-3-carboxamidesDUPHAR INT RES·Filed 1990·Granted Aug 6, 1991·78 cites·3 claims
- 0585US4950759ASubstituted 1,7-annelated 1H-indazolesDUPHAR INT RES·Filed 1989·Granted Aug 21, 1990·18 cites·3 claims
- 0684US4939136ANew anellated indole derivativesDUPHAR INT RES·Filed 1988·Granted Jul 3, 1990·38 cites·2 claims
- 0775US5102901ANew 3-n substituted carbamoyl-indole derivativesDUPHAR INT RES·Filed 1990·Granted Apr 7, 1992·31 cites·3 claims
- 0871US4985420A1,7-annelated indolecarboxylic acid esters and -amidesDUPHAR INT RES·Filed 1988·Granted Jan 15, 1991·17 cites·4 claims
- 0969US5100884A8,9-aneallated-1,2,3,4-tetrahydro-β-carboline derivativesDUPHAR INT RES·Filed 1989·Granted Mar 31, 1992·11 cites·3 claims
- 1068US5198437A1,7-annelated indolecarboxylic acid esters and amidesDUPHAR INT RES·Filed 1990·Granted Mar 30, 1993·11 cites·6 claims
- 1163US5183822ASubstituted 3,4-annelated benzimidazol-2(1h)-onesDUPHAR INT RES·Filed 1990·Granted Feb 2, 1993·14 cites·3 claims
- 1257US5332746A8,9-annelated-β-carbolines and 8,9-annelated 3,4-dihydro-β-carbolinesDUPHAR INT RES·Filed 1991·Granted Jul 26, 1994·6 cites·6 claims
- 1355US5010076A1,7-fused 1H-indole-2-carboxylic acid-N-(1,4-benzodiazepin-3-yl)amidesKALI CHEMIE PHARMA GMBH·Filed 1990·Granted Apr 23, 1991·12 cites·10 claims
- 1446US5049563AAnnelated indoleketones with an imidazolylalkyl substituentDUPHAR INT RES·Filed 1989·Granted Sep 17, 1991·2 cites·3 claims
- 1541US5326768A3,4-annelated benzimidazol-2-(1H)-one 1-carboxylic acid derivativesDUPHAR INT RES·Filed 1992·Granted Jul 5, 1994·1 cites·6 claims
- 1635US5066649A8,9-annelated-1,2,3,4-tetrahydro-β-carboline derivativesDUPHAR INT RES·Filed 1990·Granted Nov 19, 1991·2 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →