Hafernik; Steven
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hafernik; Steven.The latest application filed is for "riser tensioning system".
- Hafernik; Steven - Houston TX
| Patent | Date |
|---|---|
| Hydro-pneumatic tensioner with fluid retention device Grant 9,470,049 - Ellis , et al. October 18, 2 | 2016-10-18 |
| Riser tensioning system Grant 9,181,761 - Hafernik , et al. November 10, 2 | 2015-11-10 |
| Riser Tensioning System App 20150136412 - Hafernik; Steven ; et al. | 2015-05-21 |
| Hydro-pneumatic Tensioner With Fluid Retention Device App 20140202327 - Ellis; Fife B. ; et al. | 2014-07-24 |
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