John G. Vail

📍 Oakland, CA: #2,087 of 4,380 inventorsTop 50%

🗺 California: #185,134 of 386,348 inventorsTop 50%

Overall (All Time): #2,348,175 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4618066	Combined insulated drinking mug and megaphone	—	1986-10-21
D283772	Combined mug and megaphone	—	1986-05-13