Philip T. Hanthorn

📍 San Francisco, CA: #11,477 of 26,999 inventorsTop 45%

🗺 California: #149,087 of 386,348 inventorsTop 40%

Overall (All Time): #1,630,768 of 4,157,543Top 40%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
D433055	Combined counting board and abacus	—	2000-10-31
4875547	Portable conveyor system with telescopic boom assembly and load carrying apparatus	—	1989-10-24
4793437	Portable lift with telescopic booms and load-carrying apparatus	—	1988-12-27