Hafernik; Steven M.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hafernik; Steven M..The latest application filed is for "hydro-pneumatic cylinder with annulus fluid bypass".
- Hafernik; Steven M. - Houston TX
| Patent | Date |
|---|---|
| Hydro-pneumatic Cylinder With Annulus Fluid Bypass App 20210355762 - Prasad; Neil B. ; et al. | 2021-11-18 |
| Enhanced ram-style riser tensioner Grant 9,926,751 - Hafernik , et al. March 27, 2 | 2018-03-27 |
| Enhanced ram-style riser tensioner cylinder Grant 9,784,052 - Ellis , et al. October 10, 2 | 2017-10-10 |
| Deflection absorbing tensioner frame Grant 9,682,752 - Ellis , et al. June 20, 2 | 2017-06-20 |
| Methods and systems for tensioner connection Grant 9,540,890 - Prasad , et al. January 10, 2 | 2017-01-10 |
| Methods And Systems For Tensioner Connection App 20160376854 - Prasad; Neil B. ; et al. | 2016-12-29 |
| Enhanced Ram-style Riser Tensioner App 20160145952 - Hafernik; Steven M. ; et al. | 2016-05-26 |
| Enhanced Ram-style Riser Tensioner Cylinder App 20160145951 - Ellis; Fife B. ; et al. | 2016-05-26 |
| Deflection Absorbing Tensioner Frame App 20160024853 - Ellis; Fife B. ; et al. | 2016-01-28 |
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