Issued Patents All Time
Showing 26–50 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5423389 | Curved drilling apparatus | Houston B. Mount, II | 1995-06-13 |
| 5402856 | Anti-whirl underreamer | Lawrence Allen Sinor | 1995-04-04 |
| 5337839 | Extending the lateral portion of a short-radius wellbore | Warren J. Winters | 1994-08-16 |
| 5259468 | Method of dynamically monitoring the orientation of a curved drilling assembly and apparatus | Warren J. Winters | 1993-11-09 |
| RE34435 | Whirl resistant bit | J. Ford Brett | 1993-11-09 |
| 5213168 | Apparatus for drilling a curved subterranean borehole | Houston B. Mount, II, Warren J. Winters | 1993-05-25 |
| 5210533 | Apparatus and method for positioning a tool in a deviated section of a borehole | Marcus A. Summers, Warren J. Winters | 1993-05-11 |
| 5194859 | Apparatus and method for positioning a tool in a deviated section of a borehole | — | 1993-03-16 |
| 5131478 | Low friction subterranean drill bit and related methods | J. Ford Brett, L. Allen Sinor, Suzanne M. Behr | 1992-07-21 |
| 5111892 | Imbalance compensated drill bit with hydrostatic bearing | L. Allen Sinor | 1992-05-12 |
| 5103919 | Method of determining the rotational orientation of a downhole tool | Warren J. Winters | 1992-04-14 |
| 5042596 | Imbalance compensated drill bit | J. Ford Brett | 1991-08-27 |
| 5010789 | Method of making imbalanced compensated drill bit | J. Ford Brett | 1991-04-30 |
| 4982802 | Method for stabilizing a rotary drill string and drill bit | Warren J. Winters, J. Ford Brett | 1991-01-08 |
| 4948925 | Apparatus and method for rotationally orienting a fluid conducting conduit | Warren J. Winters, Michael Burton, J. Ford Brett | 1990-08-14 |
| 4932484 | Whirl resistant bit | J. Ford Brett | 1990-06-12 |
| 4914591 | Method of determining rock compressive strength | Warren J. Winters, Ernest C. Onyia | 1990-04-03 |
| 4905776 | Self-balancing drilling assembly and apparatus | Pierre A. Beynet, James F. Brett | 1990-03-06 |
| 4905775 | Drilling system and flow control apparatus for downhole drilling motors | James F. Brett, Warren J. Winters | 1990-03-06 |
| 4899833 | Downhole drilling assembly orienting device | Warren J. Winters | 1990-02-13 |
| 4887677 | Low pressure drill bit | Suzanne M. Behr | 1989-12-19 |
| 4881605 | Stabilizing and drilling apparatus and method | Warren J. Winters, Jame F. Brett | 1989-11-21 |
| 4871037 | Excavation apparatus, system and method | Warren J. Winters | 1989-10-03 |
| 4862974 | Downhole drilling assembly, apparatus and method utilizing drilling motor and stabilizer | Warren J. Winters, James F. Brett | 1989-09-05 |
| 4854397 | System for directional drilling and related method of use | Warren J. Winters | 1989-08-08 |