DR

Darrel Ralph

CC Camillus Cutlery: 1 patents #3 of 6Top 50%
ES Essef: 1 patents #17 of 36Top 50%
📍 Chardon, OH: #106 of 361 inventorsTop 30%
🗺 Ohio: #18,857 of 73,341 inventorsTop 30%
Overall (All Time): #1,230,753 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
8099870 Lock mechanism for spring assisted folding knife — 2012-01-24
7698821 Lock mechanism for spring assisted folding knife — 2010-04-20
6427335 Folding knife with open position lock — 2002-08-06
5320495 Pressure switch adaptor for well system — 1994-06-14