John P. Marsalis

📍 Castro Valley, CA: #480 of 760 inventorsTop 65%

🗺 California: #247,236 of 386,348 inventorsTop 65%

Overall (All Time): #4,004,655 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4621621	Vacuum valve system	—	1986-11-11