Issued Patents All Time
Showing 25 most recent of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8061380 | Automatic flow shut-off system | James B. Martin | 2011-11-22 |
| 8006714 | Automatic flow shut-off system | James B. Martin | 2011-08-30 |
| 7562673 | Automatic flow shut-off system | James B. Martin | 2009-07-21 |
| 7424896 | Automatic flow shut-off system | James B. Martin | 2008-09-16 |
| 7108060 | Fracturing different levels within a completion interval of a well | — | 2006-09-19 |
| 6814144 | Well treating process and system | — | 2004-11-09 |
| 6644406 | Fracturing different levels within a completion interval of a well | — | 2003-11-11 |
| 6588506 | Method and apparatus for gravel packing a well | — | 2003-07-08 |
| 6464007 | Method and well tool for gravel packing a long well interval using low viscosity fluids | — | 2002-10-15 |
| 6227303 | Well screen having an internal alternate flowpath | — | 2001-05-08 |
| 6220345 | Well screen having an internal alternate flowpath | Raymond J. Tibbles, Gary Hurst | 2001-04-24 |
| 6059032 | Method and apparatus for treating long formation intervals | — | 2000-05-09 |
| 5890533 | Alternate path well tool having an internal shunt tube | — | 1999-04-06 |
| 5848645 | Method for fracturing and gravel-packing a well | — | 1998-12-15 |
| 5842516 | Erosion-resistant inserts for fluid outlets in a well tool and method for installing same | — | 1998-12-01 |
| 5690175 | Well tool for gravel packing a well using low viscosity fluids | — | 1997-11-25 |
| 5560427 | Fracturing and propping a formation using a downhole slurry splitter | — | 1996-10-01 |
| 5515915 | Well screen having internal shunt tubes | Tommy J. Yates | 1996-05-14 |
| 5435389 | Sand control agent and process | Paul Shu, E. Thomas Strom, Charles S. Yeh | 1995-07-25 |
| 5435391 | Method for fracturing and propping a formation | — | 1995-07-25 |
| 5419394 | Tools for delivering fluid to spaced levels in a wellbore | — | 1995-05-30 |
| 5417284 | Method for fracturing and propping a formation | — | 1995-05-23 |
| 5333688 | Method and apparatus for gravel packing of wells | Tommy J. Yates | 1994-08-02 |
| 5333689 | Gravel packing of wells with fluid-loss control | Tommy J. Yates | 1994-08-02 |
| 5222556 | Acidizing method for gravel packing wells | William P. Donlon, Charles S. Yeh, E. Thomas Strom | 1993-06-29 |