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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Cornelia Feil — 2 Patents

Rohm Co.: 2 patents #1,039 of 2,292Top 50%
Langen (Hessen), DE: #35 of 82 inventorsTop 45%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Cornelia Feil has been granted 2 US patents while listed as an inventor at Rohm Co.. The first was granted in 1987 and the most recent in May 1989. Cornelia Feil ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Cornelia Feil in Langen (Hessen), DE.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4829101 Polymer particles and latices thereof for the immobilization of biologically active substances Dieter Kraemer, Werner Siol, Gerhard Markert, Norbert Suetterlin 1989-05-09
4710525 Polymer particles and latices thereof for the immobilization of biologically active substances Dieter Kraemer, Werner Siol, Gerhard Markert, Norbert Suetterlin 1987-12-01