Donald C. Richards

📍 Walpole, NH: #4 of 20 inventorsTop 20%

🗺 New Hampshire: #3,397 of 12,181 inventorsTop 30%

Overall (All Time): #1,292,843 of 4,157,543Top 35%

Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
5433285	Three wheeled vehicle	—	1995-07-18
5431243	Three wheeled vehicle with all wheel steering	—	1995-07-11
5344405	Single-use syringe	—	1994-09-06
5248011	Three wheeled vehicle having driven front wheels and steerable rear wheel	—	1993-09-28