Silva; Rogerio H.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Silva; Rogerio H..The latest application filed is for "expandable eccentric reamer and method of use in drilling".
- Silva; Rogerio H. - Spring TX
- Silva, Rogerio H. - US
| Patent | Date |
|---|---|
| Expandable eccentric reamer and method of use in drilling Grant 6,991,046 - Fielder , et al. January 31, 2 | 2006-01-31 |
| Sub-reamer for bi-center type tools Grant 6,913,098 - Fielder , et al. July 5, 2 | 2005-07-05 |
| Expandable eccentric reamer and method of use in drilling App 20050092526 - Fielder, Coy M. ; et al. | 2005-05-05 |
| Sub-reamer for bi-center type tools App 20040099448 - Fielder, Coy M. ; et al. | 2004-05-27 |
| Bi-center bit adapted to drill casing shoe Grant 6,629,476 - Fielder , et al. October 7, 2 | 2003-10-07 |
| Bi-center bit adapted to drill casing shoe App 20020092378 - Fielder, Coy M. ; et al. | 2002-07-18 |
| Bi-center bit adapted to drill casing shoe Grant 6,340,064 - Fielder , et al. January 22, 2 | 2002-01-22 |
| Bi-center Bit Adapted To Drill Casing Shoe App 20010045306 - FIELDER, COY M. ; et al. | 2001-11-29 |
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