SH

Steven M. Hafernik

DR Dril-Quip: 7 patents #16 of 80Top 20%
📍 Houston, TX: #3,306 of 21,073 inventorsTop 20%
🗺 Texas: #21,377 of 125,132 inventorsTop 20%
Overall (All Time): #702,558 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
11603716 Hydro-pneumatic cylinder with annulus fluid bypass Neil B. Prasad 2023-03-14
9926751 Enhanced ram-style riser tensioner Fife B. Ellis 2018-03-27
9784052 Enhanced ram-style riser tensioner cylinder Fife B. Ellis 2017-10-10
9682752 Deflection absorbing tensioner frame Fife B. Ellis, Neil B. Prasad 2017-06-20
9540890 Methods and systems for tensioner connection Neil B. Prasad, Fife B. Ellis 2017-01-10
9470049 Hydro-pneumatic tensioner with fluid retention device Fife B. Ellis 2016-10-18
9181761 Riser tensioning system Fife B. Ellis 2015-11-10