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USPTO Patent Rankings Data through Dec 31, 2025
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David A. Coffey — 4 Patents

Chevron: 3 patents #1,355 of 4,788Top 30%
HUHuntsman: 1 patents #8 of 17Top 50%
Austin, TX: #6,433 of 18,064 inventorsTop 40%
Texas: #33,915 of 125,132 inventorsTop 30%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
David A. Coffey has been granted 4 US patents while listed as an inventor at Chevron. The first was granted in 1993 and the most recent in July 1995. David A. Coffey ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list David A. Coffey in Austin, TX, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5436351 Imidazolidone polyetheramide surfactant Wei-Yang Su 1995-07-25
5389276 Aircraft deicing fluid with thermal and pH-stable wetting agent Edward C. Y. Nieh, Richard A. Armstrong 1995-02-14 $10,590,000
5386968 Aircraft wing de-icers with improved holdover times Samir S. Ashrawi, Edward C. Y. Nieh 1995-02-07 $10,873,000
5273673 Anti-icing compositions having alkylphenol ethoxylate nonionic surfactant and alkylaryl sulfonate hydrotrope Samir S. Ashrawi 1993-12-28 $23,042,000