Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10711528 | Diamond cutting elements for drill bits seeded with HCP crystalline material | Matthew Mumma, John Martin Clegg, William Henry DuBose, Neal Alan Bowden | 2020-07-14 |
| 10570665 | Drill bit | Jason Maw, Benjamin Chrest, Ryan Matthews, Thomas A. Damian, Carl Aron Deen | 2020-02-25 |
| 10563463 | Earth boring tool with improved arrangements of cutter side rakes | Rob Simmons, Carl Aron Deen | 2020-02-18 |
| 10180032 | Diamond cutting elements for drill bits seeded with HCP crystalline material | Matthew Mumma, John Martin Clegg, William Henry DuBose, Neal Alan Bowden | 2019-01-15 |
| 10160099 | Selectively leached, polycrystalline structures for cutting elements of drill bits | Matthew Mumma, John Martin Clegg, William Henry DuBose, Neal Alan Bowden | 2018-12-25 |
| 9556683 | Earth boring tool with improved arrangement of cutter side rakes | Rob Simmons, Carl Aron Deen | 2017-01-31 |
| 7308955 | Stabilizer arrangement | Steven Barton, Graham Watson | 2007-12-18 |
| 6484822 | Cutting structure for earth boring drill bits | Dean Watson, Steve Barton | 2002-11-26 |
| 6164390 | Method of determining characteristics of a rotary drag-type drill bit | Clive Jarvis | 2000-12-26 |
| 6151960 | Method of determining characteristics of a rotary drag-type drill bit | Malcolm R. Taylor | 2000-11-28 |
| 6142250 | Rotary drill bit having moveable formation-engaging members | Nigel Dennis Griffin, John M. Fuller, Alex Newton, Malcolm R. Taylor, Steven J. Taylor | 2000-11-07 |
| 6098726 | Torque transmitting device for rotary drill bits | Malcolm R. Taylor, David Jelley, Brian P. Jarvis | 2000-08-08 |
| 6089336 | Rotary drill bits | Alex Nexton, Michael Tomczak, Steven J. Taylor, John Martin Clegg | 2000-07-18 |
| 5944128 | Matrix hard facing by lost wax process | David Truax, Douglas Caraway, Stephen M. Evans | 1999-08-31 |
| 5829539 | Rotary drill bit with hardfaced fluid passages and method of manufacturing | Alex Newton, John D. Deane, Douglas Caraway, Michael Barnes, Haydn R. Lamb | 1998-11-03 |
| 5819860 | Rotary drill bits | Alex Newton, Steven J. Taylor, John Martin Clegg | 1998-10-13 |
| 5732783 | In or relating to rotary drill bits | David Truax, Douglas Caraway, Stephen M. Evans | 1998-03-31 |
| 5697461 | Rotary drill bit having a non-rotating gauge section | Alex Newton, John M. Fuller, Daniel J. Sarik | 1997-12-16 |
| 5671818 | Rotary drill bits | Alex Newton, Malcolm R. Taylor, John Martin Clegg | 1997-09-30 |
| 5651421 | Rotary drill bits | Alex Newton, Malcolm R. Taylor, John M. Fuller | 1997-07-29 |
| 5649604 | Rotary drill bits | John M. Fuller | 1997-07-22 |
| 5531281 | Rotary drilling tools | — | 1996-07-02 |
| 5417296 | Rotary drill bits | — | 1995-05-23 |