RD

Roger Doherty

📍 Portland, ME: #9 of 32 inventorsTop 30%
🗺 Maine: #146 of 437 inventorsTop 35%
Overall (2020): #298,975 of 565,922Top 55%
1
Patents 2020

Issued Patents 2020

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
D892582 Manual manhole cover lifting tool — 2020-08-11