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USPTO Patent Rankings Data through Dec 31, 2025
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Gerhard Markert — 12 Patents

Rohm Co.: 8 patents #378 of 2,292Top 20%
RFRohm Gmbh Chemische Fabrik: 2 patents #24 of 153Top 20%
RFRoehm Gmbh Chemische Fabrik: 1 patents #68 of 134Top 55%
Ober-Ramstadt, DE: #18 of 133 inventorsTop 15%
Overall (All Time): #396,045 of 4,157,543Top 10%
12 Patents All Time
Gerhard Markert has been granted 12 US patents while listed as an inventor at Rohm Co.. The first was granted in 1981 and the most recent in November 1999. Gerhard Markert ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list Gerhard Markert in Ober-Ramstadt, DE.

Patents per Year

Patents granted per year, 1981 to 1999Bar chart with a peak of 2 patents in 1987.peak 21981: 1 patents19811982: 1 patents1983: 1 patents19831984: 1 patents1985: 1 patents19851987: 2 patents1988: 1 patents19881989: 1 patents1994: 1 patents19941997: 1 patents1999: 1 patents1999

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
5976527 High surface area support having bound latex particles containing oxirane groups for immobilization of substances Werner Siol, Dieter Kraemer, Norbert Suetterlin, Cornelia Scordialo, Erwin Schuster 1999-11-02
5652316 Universally compatible pigment dispersants Michael W. May, Werner Hoss, Werner Siol 1997-07-29
5306743 Multiple phase synthetic resin dispersion Wolfgang Klesse, Marliese Weber 1994-04-26
4829101 Polymer particles and latices thereof for the immobilization of biologically active substances Dieter Kraemer, Werner Siol, Norbert Suetterlin, Cornelia Feil 1989-05-09
4753708 Method for heat sealing Horst Pennewiss, Waldemar Schleier, Reiner Schnee 1988-06-28
4710525 Polymer particles and latices thereof for the immobilization of biologically active substances Dieter Kraemer, Werner Siol, Norbert Suetterlin, Cornelia Feil 1987-12-01
4640954 Polymer suspension containing a water-soluble polymer suspended in an oil phase Reiner Schnee, Horst Pennewiss 1987-02-03
4542175 Method for thickening aqueous systems Herbert Fink, Klaus Huebner, Norbert Suetterlin 1985-09-17
4452862 Pharmaceutical coating materials soluble or swellable in gastric juice and pharmaceutical dosage forms coated therewith Dieter Dreher, Klaus Lehmann, Werner Siol, Hubert Rauch 1984-06-05
4373056 Aqueous artificial resin dispersions free of emulsifying agents Siegmund Besecke, Herbert Fink, Norbert Sutterlin, Gunter Schroder, Willi Tilch 1983-02-08
4338418 Process for graft copolymerization Heinz Jost, Hellmuth Knoell, Horst Pennewiss 1982-07-06
4281081 Process for graft copolymerization Heinz Jost, Hellmuth Knoell, Horst Pennewiss 1981-07-28

Frequent Collaborators

Werner Siol5 shared
Horst Pennewiss4 shared
Norbert Suetterlin4 shared
Dieter Kraemer3 shared
Hellmuth Knoell2 shared
Cornelia Feil2 shared

Nearby-Ranked Inventors

John Patrick Hickey, III12
Gregory Lutter12
Josselin Xavier COUPARD12
Xuan Li12
Nandana Mihindukulasooriya12
Keiichi Matsuda12
Robert Imig12
Peter Mage12
Sze Ping Ching12