DR

Derek Richner

HD Hand Tool Design: 2 patents #11 of 29Top 40%
📍 Whately, MA: #4 of 6 inventorsTop 70%
🗺 Massachusetts: #42,150 of 88,656 inventorsTop 50%
Overall (All Time): #2,250,101 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5913954 Pawl for a low profile wrench Robert L. Arnold, Dana L. Delaney, James A. Van Lenten 1999-06-22
5829326 Cover plate for a ratchet wrench 1998-11-03