DH

David A. Helms

Chevron: 1 patents #78 of 271Top 30%
📍 Houston, TX: #236 of 987 inventorsTop 25%
🗺 Texas: #1,330 of 5,527 inventorsTop 25%
Overall (1994): #145,602 of 165,921Top 90%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5315117 Volume meter system Gregory J. Hatton, Michael G. Durrett 1994-05-24