RJ

Richard L. Johnson

📍 Park Lake, KY: #1 of 1 inventorsTop 100%
🗺 Kentucky: #54 of 406 inventorsTop 15%
Overall (1989): #65,842 of 140,708Top 50%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4811599 Borehole sampling John A. Cherry, James F. Pankow 1989-03-14