Fontenot; John E.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Fontenot; John E..The latest application filed is for "non-contact borehole caliber measurement".
- Fontenot; John E. - Houston TX
| Patent | Date |
|---|---|
| Non-contact borehole caliber measurement Grant 4,964,085 - Coope , et al. October 16, 1 | 1990-10-16 |
| Method and apparatus for determining true formation porosity from measurement-while-drilling neutron porosity measurement devices Grant 4,810,459 - Fontenot March 7, 1 | 1989-03-07 |
| Method of controlling the direction of a drill bit in a borehole Grant 4,733,733 - Bradley , et al. March 29, 1 | 1988-03-29 |
| Method for estimating formation characteristics of the exposed bottomhole formation Grant 4,697,650 - Fontenot October 6, 1 | 1987-10-06 |
| Method and apparatus for determining formation pressure Grant 4,570,480 - Fontenot , et al. February 18, 1 | 1986-02-18 |
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