DH

Donald Hay

OI Oceaneering International: 1 patents #133 of 280Top 50%
VG Vetco Gray: 1 patents #168 of 364Top 50%
📍 Houston, TX: #8,651 of 21,073 inventorsTop 45%
🗺 Texas: #52,441 of 125,132 inventorsTop 45%
Overall (All Time): #1,974,378 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9574557 Subsea pressure compensating pump apparatus Jake Hennig 2017-02-21
4777800 Static head charged hydraulic accumulator — 1988-10-18