RJ

Richard Hartmann, Jr.

📍 Portland, OR: #45 of 229 inventorsTop 20%
🗺 Oregon: #179 of 893 inventorsTop 25%
Overall (1989): #65,978 of 140,708Top 50%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4870710 Body-liquid collecting and mattress protecting apparatus — 1989-10-03