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

Robert E. Hawbaker — 3 Patents

Caterpillar: 3 patents #2,162 of 8,398Top 30%
Peoria, IL: #577 of 1,769 inventorsTop 35%
Illinois: #26,653 of 84,256 inventorsTop 35%
Overall (All Time): #1,611,570 of 4,157,543Top 40%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6634619 Pressure control valve having enhanced durability David A. Cusac, Chuong Q. Dam, Mark G. Fulford, Paul Gamble, Rebecca M. Zick 2003-10-21
6604420 Nondestructive adhesion testing by ultrasonic cavitation Leonard George Wheat, Jason William Sanders, Poh Heng Teh 2003-08-12
6478933 Method for creating surface oil reservoirs on coated iron Chuong Q. Dam 2002-11-12