Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David George Collopy — 2 Patents

PQPq: 1 patents #47 of 111Top 45%
Somerford, GB: #21 of 55 inventorsTop 40%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
David George Collopy has been granted 2 US patents while listed as an inventor at Pq. The first was granted in 2023 and the most recent in May 2025. David George Collopy ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list David George Collopy in Somerford, GB.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12304975 Chromium-on-silica catalysts and methods of making the same Yatao Hu, Parag Shah, Robert Parker, Myoung Kie Lee 2025-05-20
11732065 Chromium-on-silica catalysts and methods of making the same Yatao Hu, Parag Shah, Robert Parker, Myoung Kie Lee 2023-08-22