{"@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [{"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.patentleaderboard.com/"}, {"@type": "ListItem", "position": 2, "name": "Inventors", "item": "https://www.patentleaderboard.com/inventors"}, {"@type": "ListItem", "position": 3, "name": "David Cecil Roach", "item": "https://www.patentleaderboard.com/inventor/fl:da_ln:roach-6"}]}
Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DR

David Cecil Roach — 4 Patents

Halifax, CA: #78 of 494 inventorsTop 20%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
David Cecil Roach has been granted 4 US patents. The first was granted in 2008 and the most recent in March 2023. David Cecil Roach ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list David Cecil Roach in Halifax, NS, CA.

Patents per Year

Patents granted per year, 2008 to 2023Bar chart with a peak of 1 patents in 2008.peak 12008: 1 patents20082018: 1 patents20182021: 1 patents20212023: 1 patents2023

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
11612708 Method and apparatus for determining and/or predicting sleep and respiratory behaviours for management of airway pressure Hamed Hanafialamdari, Scott Lowe, Stephen J. Driscoll, Luke Hacquebard, Klaus Michael Schmidt 2023-03-28
10960160 Anesthetic circuit having a hollow fiber membrane Klaus Michael Schmidt, Florentin Michael Wilfart 2021-03-30
10076620 Anesthetic circuit having a hollow fiber membrane Klaus Michael Schmidt, Florentin Michael Wilfart 2018-09-18
7327273 Fluid monitoring device Orlando Hung, Peter Hodges Gregson 2008-02-05