Inventor · disambiguated record
Geert Jan Sterk
Also filed as: STERK GEERT J · STERK GEERT JAN
28 granted patents·2 pending applications·325 citations·filing 1987–2014
96Inventor score
Top patents by PatentIndex Score
30 records- 0187US7531540B2Phthalazinone-piperidino-derivatives as PDE4 inhibitorsNYCOMED GMBH·Filed 2006·Granted May 12, 2009·9 cites·5 claims
- 0287US7179810B2Phthalazinone-piperidino-derivatives as PDE4 inhibitorsALTANA PHARMA AG·Filed 2005·Granted Feb 20, 2007·9 cites·15 claims
- 0386US6544993B1Tetrahydrothiopyranphthalazinone derivatives as PDE4 inhibitorsALTANA PHARMA AG·Filed 2000·Granted Apr 8, 2003·23 cites·10 claims
- 0485US6818651B2(Dihydro) isoquinoline derivatives as phosphodiesterase inhibitorsALTANA PHARMA AG·Filed 2001·Granted Nov 16, 2004·33 cites·19 claims
- 0583US6953853B2Phthalazinone-piperidino-derivatives as PDE4 inhibitorsALTANA PHARMA AG·Filed 2002·Granted Oct 11, 2005·17 cites·29 claims
- 0683US6103718APhthalazinonesBYK GULDEN LOMBERG CHEM FAB·Filed 1998·Granted Aug 15, 2000·64 cites·11 claims
- 0782US7494990B22-(piperidin-4-yl)-4,5-dihydro-2H-pyridazin-3-one derivatives as PDE4 inhibitorsNYCOMED GMBH·Filed 2005·Granted Feb 24, 2009·7 cites·14 claims
- 0880US7186710B2PhthalazinonesALTANA PHARMA AG·Filed 2002·Granted Mar 6, 2007·14 cites·14 claims
- 0978US9388156B2Chromanyl derivatives for treating mitochondrial diseaseKHONDRION IP B V·Filed 2013·Granted Jul 12, 2016·6 cites·17 claims
- 1078US6756371B1Phthalazinone derivatives as PDE4 inhibitorsALTANA PHARMA AG·Filed 2000·Granted Jun 29, 2004·11 cites·11 claims
- 1177US7820669B22-(piperidin-4-yl)-4,5-dihydro-2H-pyridazin-3-one derivatives as PDE4 inhibitorsNYCOMED GMBH·Filed 2009·Granted Oct 26, 2010·3 cites·11 claims
- 1274US7220746B2Pyrrolidinedione substituted piperidine-phthalazones as PDE4 inhibitorsALTANA PHARMA AG·Filed 2003·Granted May 22, 2007·7 cites·33 claims
- 1374US5385922AThiazolidine derivativesCEDONA PHARM BV·Filed 1991·Granted Jan 31, 1995·36 cites·4 claims
- 1473US6380196B1DihydrobenzofuransBYK GULDEN LOMBERG CHEM FAB·Filed 1998·Granted Apr 30, 2002·20 cites·11 claims
- 1572US7022696B2Piperazino-derivatives and their use as PDE4 inhibitorALTANA PHARMA AG·Filed 2002·Granted Apr 4, 2006·6 cites·14 claims
- 1668US8609848B2Pyrazolone-derivatives and their use as PDE-4 inhibitorsSCHLEMMINGER IMRE·Filed 2009·Granted Dec 17, 2013·2 cites·15 claims
- 1768US8304436B2Pyrazolone derivatives as PDE4 inhibitorsSCHMIDT BEATE·Filed 2008·Granted Nov 6, 2012·1 cites·13 claims
- 1867US6933296B2Compounds effective as β2-adrenoreceptor agonists as well as PDE4-inhibitorsALTANA PHARMA B V·Filed 2001·Granted Aug 23, 2005·6 cites·9 claims
- 1965US5049694APharmaceutical composition having relaxing activity which contains a nitrate ester as active substanceCEDONA PHARM BV·Filed 1989·Granted Sep 17, 1991·15 cites·11 claims
- 2064US6255303B1Phthalazinone PDE III/IV inhibitorsBYK GULDEN LOMBERG CHEM FAB·Filed 1999·Granted Jul 3, 2001·24 cites·8 claims
- 2160US9090597B2Pyrazolone derivatives as PDE4 inhibitorsTAKEDA GMBH·Filed 2014·Granted Jul 28, 2015·0 cites·3 claims
- 2257US9340522B2Pyrazolone-derivatives and their use as PDE-4 inhibitorsTAKEDA GMBH·Filed 2013·Granted May 17, 2016·0 cites·8 claims
- 2354US8865745B2Pyrazolone derivatives as PDE4 inhibitorsSCHMIDT BEATE·Filed 2012·Granted Oct 21, 2014·0 cites·5 claims
- 2451US6846821B2Tetrahydrothiopy ranphthalazinone derivatives as PDE4 inhibitorsALTANA PHARMA AG·Filed 2003·Granted Jan 25, 2005·0 cites·23 claims
- 2549US6689799B11,4-dihydropyridine-5-carboxylic acid ester derivatives and method for the preparation thereofREPHARTOX·Filed 2000·Granted Feb 10, 2004·1 cites·20 claims
- 2648US5010095AN-(W-substituted alkyl)-'-(imidazol-4-yl)alkyl)guanidineCEDONA PHARM BV·Filed 1987·Granted Apr 23, 1991·6 cites·9 claims
- 2745US2006166995A1Piperidine-n-oxide-derivativesALTANA PHARMA AG·Filed 2003·Application pending·0 cites
- 2842US2008227790A1Pyridazinone Derivatives and their Use as Pde4 InhibitorsALTANA PHARMA AG·Filed 2005·Application pending·0 cites
- 2936US5378718A1,4-dihydropyridine derivativesCEDONA PHARM BV·Filed 1991·Granted Jan 3, 1995·3 cites·5 claims
- 3028US5599966ASubstituted ethanolamine estersBYK NEDERLAND BV·Filed 1993·Granted Feb 4, 1997·2 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →