Hughes; Trevor L.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hughes; Trevor L..The latest application filed is for "viscoelastic surfactant based gelling composition for wellbore service fluids".
- Hughes; Trevor L. - Cambridge GB
- Hughes; Trevor L. - Cherry Hinton GB2
| Patent | Date |
|---|---|
| Viscoelastic surfactant based gelling composition for wellbore service fluids Grant 6,232,274 - Hughes , et al. May 15, 2 | 2001-05-15 |
| Method of analyzing drilling fluids Grant 5,557,103 - Hughes , et al. September 17, 1 | 1996-09-17 |
| Method to determine the phase composition of cement Grant 5,475,220 - Hughes , et al. December 12, 1 | 1995-12-12 |
| Method of monitoring the drilling operations by analyzing the circulating drilling mud Grant 4,878,382 - Jones , et al. November 7, 1 | 1989-11-07 |
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