Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8220548 | Surfactant wash treatment fluids and associated methods | Kenneth Oyler, William Walter Shumway, Ian D. Robb, Eric Davidson | 2012-07-17 |
| 7825072 | Inhibitive water-based drilling fluid system and method for drilling sands and other water-sensitive formations | William Walter Shumway, Ryan G. Ezell | 2010-11-02 |
| 7645723 | Method of drilling using invert emulsion drilling fluids | Jeff Kirsner, Don Siems, Kimberly Burrows-Lawson | 2010-01-12 |
| 7547663 | Invert drilling fluids and methods of drilling boreholes | Jeff Kirsner, Don Siems, Kimberly Burrows-Lawson, Ian D. Robb, Dale E. Jamison | 2009-06-16 |
| 7534743 | Invert drilling fluids and methods of drilling boreholes | Jeff Kirsner, Don Siems, Kimberly Burrows-Lawson, Ian D. Robb, Dale E. Jamison | 2009-05-19 |
| 7488704 | Invert drilling fluids for use in drilling in subterranean formations | Jeff Kirsner, Don Siems, Kimberly Burrows-Lawson, Ian D. Robb, Dale E. Jamison | 2009-02-10 |
| 7462580 | Flat rheology drilling fluids | Jeff Kirsner, Don Siems, Kimberly Burrows-Lawson, Ian D. Robb, Dale E. Jamison | 2008-12-09 |
| 7456135 | Methods of drilling using flat rheology drilling fluids | Jeff Kirsner, Don Siems, Kimberly Burrows-Lawson, Ian D. Robb, Dale E. Jamison | 2008-11-25 |
| 7439210 | Inhibitive water-based drilling fluid system and method for drilling sands and other water-sensitive formations | Gary C. West, Ernest Len Grebe | 2008-10-21 |
| 7278485 | Method of formulating and using a drilling mud with fragile gels | Jeff Kirsner, Don Siems, Kimberly Burrows-Lawson | 2007-10-09 |
| 6887832 | Method of formulating and using a drilling mud with fragile gels | Jeff Kirsner, Don Siems, Kimberly Burrows-Lawson | 2005-05-03 |