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USPTO Patent Rankings Data through Sept 30, 2025
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David George Collopy

PQPq: 1 patents #47 of 111Top 45%
Overall (All Time): #1,713,506 of 4,157,543Top 45%
2 Patents All Time

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