Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
DP

David Perry

EXExxonMobil: 2 patents #3,932 of 10,161Top 40%
APAnacor Pharmaceuticals: 1 patents #72 of 93Top 80%
Benicia, CA: #88 of 234 inventorsTop 40%
California: #149,087 of 386,348 inventorsTop 40%
Overall (All Time): #1,545,323 of 4,157,543Top 40%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
8524184 Sulfur recovery plant tail gas treatment process Jagannathan N. Iyengar, Robert B. Fedich 2013-09-03
7652000 Boron-containing compounds and methods of use Kirk R. Maples, Carolyn Bellinger-Kawahara 2010-01-26
5376262 Concentration and/disposal of non-volatile inorganic contaminants from refinery waste water streams 1994-12-27