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USPTO Patent Rankings Data through Dec 31, 2025
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Patrick Stamp — 3 Patents

TOTopcon: 3 patents #244 of 684Top 40%
Carouge, CH: #23 of 92 inventorsTop 25%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Patrick Stamp has been granted 3 US patents while listed as an inventor at Topcon. All of these patents were granted in 1994. Patrick Stamp ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Patrick Stamp in Carouge, CH.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5349431 Apparatus for measuring cross-sectional distribution of refractive index of optical waveguide Nicolas Gisin, Rogerio Passy, Nobuo Hori, Shigenori Nagano 1994-09-20
5280334 Apparatus for measuring cross-sectional distribution of refractive index of optical waveguide by RNF method Nicolas Gisin, Nobuo Hori 1994-01-18
5278628 Apparatus for measuring cross-sectional distribution of refractive index of optical waveguide by RNF method Nicolas Gisin, Nobuo Hori 1994-01-11