Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Simon Ritchie — 3 Patents

BFBaldwin Filters: 1 patents #35 of 56Top 65%
BPBritish Telecommunications Plc: 1 patents #168 of 616Top 30%
BLBritish Telecommunications Public Limited: 1 patents #627 of 1,458Top 45%
Kearney, NE: #28 of 110 inventorsTop 30%
Nebraska: #1,418 of 5,697 inventorsTop 25%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Simon Ritchie has been granted 3 US patents while listed as an inventor at Baldwin Filters. The first was granted in 1988 and the most recent in March 2025. Simon Ritchie ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Simon Ritchie in Kearney, NE, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12257536 Heat activated adhesive for filters that may contain multiple elements Farrell F. Calcaterra, Charles R. Wick, David Duryea 2025-03-25
5216237 Optical detector with integral filter and having Fabry Perot resonator system Paul C. Spurdens, Mark D. Learmouth 1993-06-01 $3,775,000
4793677 Electro-optic devices with waveguide and having small spatial spread of applied electric field Michael J. Adams, Michael Robertson, Paul M. Rodgers 1988-12-27 $3,142,000