RK

Robert A. Karczewski

📍 Falmouth, MA: #59 of 135 inventorsTop 45%
🗺 Massachusetts: #42,150 of 88,656 inventorsTop 50%
Overall (All Time): #2,306,384 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5080371 Foot attachable apparatus for tossing and receiving a ball — 1992-01-14
4651722 Knee support structure — 1987-03-24