Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Mark Leonard — 5 Patents

HP: 4 patents #4,645 of 7,018Top 70%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Mark Leonard has been granted 5 US patents. The first was granted in 1981 and the most recent in February 2016. Mark Leonard ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Mark Leonard in Edinburgh, CA, GB.

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
D748785 Waterbirth mirror Fiona Denison, Marc Desmulliez, Carmen Torres-Sanchez, Sheonagh Brook-Smith, Mark Robson +1 more 2016-02-02
4691101 Optical positional encoder comprising immediately adjacent detectors 1987-09-01 $119,993,000
4451731 Apparatus and method for modulating light to generate an index pulse 1984-05-29 $23,853,000
4271364 Bistable hysteretic integrated circuit 1981-06-02 $34,211,000
4259570 Optical comparator 1981-03-31 $31,318,000