Growing community of inventors

Utrecht, Netherlands

Geert Jan Sterk

Average Co-Inventor Count = 2.20

ph-index = 9

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 165

Geert Jan SterkBeate Schmidt (10 patents)Geert Jan SterkArmin Hatzelmann (6 patents)Geert Jan SterkGerhard Grundler (5 patents)Geert Jan SterkHans-Peter Kley (5 patents)Geert Jan SterkDegenhard Marx (5 patents)Geert Jan SterkChristof Zitt (5 patents)Geert Jan SterkAnke Heuser (5 patents)Geert Jan SterkWiro M P B Menge (5 patents)Geert Jan SterkHendrik Timmerman (4 patents)Geert Jan SterkJan Bron (4 patents)Geert Jan SterkJan F Van Der Werf (4 patents)Geert Jan SterkRolf-Peter Hummel (3 patents)Geert Jan SterkChristian Scheufler (3 patents)Geert Jan SterkAndrea Wohlsen (3 patents)Geert Jan SterkMartin Feth (3 patents)Geert Jan SterkDeborah Ockert (3 patents)Geert Jan SterkJohannes A M Christiaans (3 patents)Geert Jan SterkDieter Flockerzi (2 patents)Geert Jan SterkHermann Tenor (2 patents)Geert Jan SterkClemens Braun (2 patents)Geert Jan SterkImre Schlemminger (2 patents)Geert Jan SterkJuergen Volz (2 patents)Geert Jan SterkMargaretha Van Der Mey (2 patents)Geert Jan SterkRaimund Kuelzer (1 patent)Geert Jan SterkPedro Harold Han Hermkens (1 patent)Geert Jan SterkRuben Gerardus George Leenders (1 patent)Geert Jan SterkSteffen Weinbrenner (1 patent)Geert Jan SterkJosef Stadlwieser (1 patent)Geert Jan SterkWolf-Rüdiger Ulrich (1 patent)Geert Jan SterkRaimund Külzer (1 patent)Geert Jan SterkJürgen Volz (1 patent)Geert Jan SterkRichard Hendrik Blaauw (1 patent)Geert Jan SterkHenk Timmerman (1 patent)Geert Jan SterkHenk Van Der Goot (1 patent)Geert Jan SterkMeta E Veerman (1 patent)Geert Jan SterkJan Fetze Van Der Werf (1 patent)Geert Jan SterkRuben Gerardus George Leenders (0 patent)Geert Jan SterkPedro Harold Han Hermkens (0 patent)Geert Jan SterkAnke Heuser (0 patent)Geert Jan SterkAndrea Wohlsen (0 patent)Geert Jan SterkMartin P Feth (0 patent)Geert Jan SterkWiro MPB Menge (0 patent)Geert Jan SterkMartin P Feth (0 patent)Geert Jan SterkGeert Jan Sterk (28 patents)Beate SchmidtBeate Schmidt (29 patents)Armin HatzelmannArmin Hatzelmann (20 patents)Gerhard GrundlerGerhard Grundler (20 patents)Hans-Peter KleyHans-Peter Kley (17 patents)Degenhard MarxDegenhard Marx (15 patents)Christof ZittChristof Zitt (9 patents)Anke HeuserAnke Heuser (5 patents)Wiro M P B MengeWiro M P B Menge (5 patents)Hendrik TimmermanHendrik Timmerman (11 patents)Jan BronJan Bron (6 patents)Jan F Van Der WerfJan F Van Der Werf (4 patents)Rolf-Peter HummelRolf-Peter Hummel (12 patents)Christian ScheuflerChristian Scheufler (9 patents)Andrea WohlsenAndrea Wohlsen (6 patents)Martin FethMartin Feth (6 patents)Deborah OckertDeborah Ockert (3 patents)Johannes A M ChristiaansJohannes A M Christiaans (3 patents)Dieter FlockerziDieter Flockerzi (23 patents)Hermann TenorHermann Tenor (13 patents)Clemens BraunClemens Braun (4 patents)Imre SchlemmingerImre Schlemminger (2 patents)Juergen VolzJuergen Volz (2 patents)Margaretha Van Der MeyMargaretha Van Der Mey (2 patents)Raimund KuelzerRaimund Kuelzer (27 patents)Pedro Harold Han HermkensPedro Harold Han Hermkens (8 patents)Ruben Gerardus George LeendersRuben Gerardus George Leenders (8 patents)Steffen WeinbrennerSteffen Weinbrenner (8 patents)Josef StadlwieserJosef Stadlwieser (8 patents)Wolf-Rüdiger UlrichWolf-Rüdiger Ulrich (7 patents)Raimund KülzerRaimund Külzer (5 patents)Jürgen VolzJürgen Volz (4 patents)Richard Hendrik BlaauwRichard Hendrik Blaauw (4 patents)Henk TimmermanHenk Timmerman (1 patent)Henk Van Der GootHenk Van Der Goot (1 patent)Meta E VeermanMeta E Veerman (1 patent)Jan Fetze Van Der WerfJan Fetze Van Der Werf (1 patent)Ruben Gerardus George LeendersRuben Gerardus George Leenders (0 patent)Pedro Harold Han HermkensPedro Harold Han Hermkens (0 patent)Anke HeuserAnke Heuser (0 patent)Andrea WohlsenAndrea Wohlsen (0 patent)Martin P FethMartin P Feth (0 patent)Wiro MPB MengeWiro MPB Menge (0 patent)Martin P FethMartin P Feth (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Altana Pharma Ag (9 from 84 patents)

2. Nycomed Gmbh (4 from 63 patents)

3. Takeda Gmbh (4 from 47 patents)

4. Cedona Pharmaceuticals B.v. (4 from 5 patents)

5. Byk Gulden Lomberg Chemische Fabrik Gmbh (3 from 136 patents)

6. Byk Nederland Bv (1 from 2 patents)

7. Khondiron IP B.v. (1 from 1 patent)

8. Altana Pharma B.v. (1 from 1 patent)

9. Rephartox (1 from 1 patent)

10. Khondrion IP B.v. (7 patents)


28 patents:

1. 9388156 - Chromanyl derivatives for treating mitochondrial disease

2. 9340522 - Pyrazolone-derivatives and their use as PDE-4 inhibitors

3. 9090597 - Pyrazolone derivatives as PDE4 inhibitors

4. 8865745 - Pyrazolone derivatives as PDE4 inhibitors

5. 8609848 - Pyrazolone-derivatives and their use as PDE-4 inhibitors

6. 8304436 - Pyrazolone derivatives as PDE4 inhibitors

7. 7820669 - 2-(piperidin-4-yl)-4,5-dihydro-2H-pyridazin-3-one derivatives as PDE4 inhibitors

8. 7531540 - Phthalazinone-piperidino-derivatives as PDE4 inhibitors

9. 7494990 - 2-(piperidin-4-yl)-4,5-dihydro-2H-pyridazin-3-one derivatives as PDE4 inhibitors

10. 7220746 - Pyrrolidinedione substituted piperidine-phthalazones as PDE4 inhibitors

11. 7186710 - Phthalazinones

12. 7179810 - Phthalazinone-piperidino-derivatives as PDE4 inhibitors

13. 7022696 - Piperazino-derivatives and their use as PDE4 inhibitor

14. 6953853 - Phthalazinone-piperidino-derivatives as PDE4 inhibitors

15. 6933296 - Compounds effective as β2-adrenoreceptor agonists as well as PDE4-inhibitors

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as of
12/10/2025
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