PB

Paul G. Borthwick

📍 Marshalltown, IA: #132 of 271 inventorsTop 50%
🗺 Iowa: #6,094 of 15,303 inventorsTop 40%
Overall (All Time): #2,259,708 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5743546 Bicycle crank arm shortener — 1998-04-28
5498015 Bicycle stand Jerry J. Trout 1996-03-12