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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David A. Strah — 3 Patents

COConoco: 3 patents #121 of 638Top 20%
Ponca City, OK: #134 of 444 inventorsTop 35%
Oklahoma: #3,385 of 12,736 inventorsTop 30%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
David A. Strah has been granted 3 US patents while listed as an inventor at Conoco. The first was granted in 1988 and the most recent in May 1993. David A. Strah ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list David A. Strah in Ponca City, OK, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5207282 Method for inhibiting the initiation and propagation of formation fractures while drilling and casing a well Giin-Fa Fuh, Nobuo Morita, Donald L. Whitfill 1993-05-04
5180020 Method for inhibiting the initiation and propagation of formation fractures while drilling Giin-Fa Fuh, Nobuo Morita, Donald L. Whitfill 1993-01-19
4740632 Process for removing methanol from alkylation unit feed stream Ardis L. Anderson 1988-04-26