JC

John M. Callis

📍 Sellersburg, IN: #1 of 5 inventorsTop 20%
🗺 Indiana: #372 of 1,697 inventorsTop 25%
Overall (1994): #41,664 of 165,921Top 30%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5341691 Dual use pressurized and unpressurized oil sampling apparatus Rex D. Callis 1994-08-30