JB

John C. Butman

I- I-Tek: 1 patents #32 of 85Top 40%
📍 Concord, MA: #504 of 720 inventorsTop 70%
🗺 Massachusetts: #56,664 of 88,656 inventorsTop 65%
Overall (All Time): #4,068,623 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
D263964 Apparatus for selecting eyeglass frames — 1982-04-20