DH

David Rand Hill

HS Halliburton Energy Services: 2 patents #2,138 of 4,711Top 50%
📍 Zanesville, OH: #19 of 67 inventorsTop 30%
🗺 Ohio: #30,338 of 73,341 inventorsTop 45%
Overall (All Time): #1,713,788 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12366243 Minimizing drivetrain damage from bad discharge valves on positive displacement pumps Stanley V. Stephenson 2025-07-22
12306064 Engine condition and control through the use of a pump as a dynamometer Stanley V. Stephenson, Timothy Holiman Hunter, Billy Don Coskrey, Andrew Silas Clyburn, Corey Gene Ralls 2025-05-20