RC

Richard H. Crampton

📍 Gresham, OR: #37 of 243 inventorsTop 20%
🗺 Oregon: #8,503 of 28,073 inventorsTop 35%
Overall (All Time): #1,176,669 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
10240394 Slip-resistant support base and method of making — 2019-03-26
8322491 Ladder with cushioning pad — 2012-12-04
5920902 Knee pads for work pants — 1999-07-13
5845333 Knee pads for work pants — 1998-12-08