RJ

Richard Hartmann, Jr.

📍 Portland, OR: #99 of 366 inventorsTop 30%
🗺 Oregon: #335 of 1,309 inventorsTop 30%
Overall (1997): #88,928 of 185,788Top 50%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5698004 Method and packaging utilizing calcium cyanamide for soil treatment — 1997-12-16