Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David Cecil Roach — 1 Patent in 2021

Halifax, CA: #14 of 69 inventorsTop 25%
Overall (2021): #480,036 of 548,734Top 90%
1 Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10960160 Anesthetic circuit having a hollow fiber membrane Klaus Michael Schmidt, Florentin Michael Wilfart 2021-03-30