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

Sherman C. May

UNUnknown: 4 patents #4,220 of 83,584Top 6%
BIBechtel International: 1 patents #10 of 40Top 25%
San Francisco, CA: #9,535 of 26,999 inventorsTop 40%
California: #124,610 of 386,348 inventorsTop 35%
Overall (All Time): #1,303,394 of 4,157,543Top 35%
4 Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4852668 Hydraulic drilling apparatus and method Ben Wade Oakes Dickinson, III, Robert Wayne Dickinson, Charles S. Mackey 1989-08-01
4790394 Hydraulic drilling apparatus and method Ben Wade Oakes Dickinson, III, Robert Wayne Dickinson, Richard R. Jensen, Charles S. Mackey, Robert D. Wilkes 1988-12-13
4787465 Hydraulic drilling apparatus and method Ben Wade Oakes Dickinson, III, Robert Wayne Dickinson, Richard R. Jensen, Charles S. Mackey, Robert D. Wilkes +1 more 1988-11-29
4366066 Stabilization of softened water with self-generated CO.sub.2 Alfred N. Rogers, Leon Awerbuch 1982-12-28