DR

Douglas E. Rigney

📍 Pleasant Hill, CA: #127 of 365 inventorsTop 35%
🗺 California: #149,087 of 386,348 inventorsTop 40%
Overall (All Time): #1,632,673 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5881434 Implement holder — 1999-03-16
5673604 Collapsible hole punch — 1997-10-07
5503052 Hole punch Leonard L. Hofheins 1996-04-02