Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12018530 | Radial cutting assembly for drilling tool | — | 2024-06-25 |
| 9562397 | Adjustable body supported cutter arms for underreamer | — | 2017-02-07 |
| 8360173 | Positive engagement underreamer and method | — | 2013-01-29 |
| 7665550 | Underreamer and method of use | — | 2010-02-23 |
| 7464773 | Enhanced drill bit lubrication apparatus and method | — | 2008-12-16 |
| 7240745 | Drill bit lubrication apparatus and method | — | 2007-07-10 |
| 7090034 | Reamer having toroidal crusher body and method of use | — | 2006-08-15 |
| 6892828 | Nutating single cone drill bit | — | 2005-05-17 |
| 6668949 | Underreamer and method of use | — | 2003-12-30 |
| 6527066 | Hole opener with multisized, replaceable arms and cutters | — | 2003-03-04 |
| 5992542 | Cantilevered hole opener | — | 1999-11-30 |
| 5647437 | Thru tubing tool and method | Britt O. Braddick | 1997-07-15 |
| 5566762 | Thru tubing tool and method | Britt O. Braddick | 1996-10-22 |
| 5339913 | Well orienting tool and method of use | — | 1994-08-23 |
| 5131464 | Releasable electrical wet connect for a drill string | Robert A. Lenhart | 1992-07-21 |
| 5107939 | Electrically conducting an orientation signal in a directionally drilled well | Robert A. Lenhart | 1992-04-28 |
| 5035293 | Blade or member to drill or enlarge a bore in the earth and method of forming | — | 1991-07-30 |
| 4895215 | Seal cage assembly for relatively movable members | — | 1990-01-23 |
| 4825964 | Arrangement for reducing seal damage between rotatable and stationary members | — | 1989-05-02 |
| 4614242 | Bore hole enlarging arrangement and method | — | 1986-09-30 |
| 4533003 | Drilling apparatus and cutter therefor | Thomas F. Bailey, John E. Campbell, Nehal Shah | 1985-08-06 |
| 4191255 | Method and apparatus for cutting and pulling tubular and associated well equipment submerged in a water covered area | — | 1980-03-04 |