TD

Tommy J. Derrington

EI Eagle-Picher Industries: 2 patents #16 of 101Top 20%
📍 Denton, TX: #138 of 434 inventorsTop 35%
🗺 Texas: #52,441 of 125,132 inventorsTop 45%
Overall (All Time): #2,339,611 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4786412 Hydrocyclone having dewatering tube Roy D. Lister 1988-11-22
4554722 Method for removing gun barrel evacuator — 1985-11-26