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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David E Estell — 2 Patents

DUDanisco Us: 2 patents #193 of 467Top 45%
San Francisco, CA: #14,470 of 26,999 inventorsTop 55%
California: #187,151 of 386,348 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
David E Estell has been granted 2 US patents while listed as an inventor at Danisco Us. The first was granted in 2011 and the most recent in July 2015. David E Estell ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list David E Estell in San Francisco, CA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9090887 Variant alpha-amylases from Bacillus subtilis and methods of use, thereof William A. Cuevas, Sang-Kyu Lee, Sandra W. Ramer, Andrew Shaw, Amr R. Toppozada +5 more 2015-07-28 $16,712,000
8084240 Geobacillus stearothermophilus α-amylase (AmyS) variants with improved properties William A. Cuevas, Sang-Kyu Lee, Sandra W. Ramer, Andrew Shaw, Amr R. Toppozada +1 more 2011-12-27 $10,303,000