Issued Patents All Time
Showing 1–25 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11739257 | Hydraulic fracturing fluid | Shawn Lu | 2023-08-29 |
| 11326086 | Drilling fluid for downhole electrocrushing drilling | William Walter Shumway | 2022-05-10 |
| 11319475 | Drilling fluid for downhole electrocrushing drilling | William Walter Shumway | 2022-05-03 |
| 11091685 | Drilling fluid for downhole electrocrushing drilling | Dale E. Jamison, William Walter Shumway | 2021-08-17 |
| 11091683 | Drilling fluid for downhole electrocrushing drilling | Cato Russell McDaniel, William Walter Shumway | 2021-08-17 |
| 10717915 | Drilling fluid for downhole electrocrushing drilling | William Walter Shumway | 2020-07-21 |
| 10557072 | Drilling fluid for downhole electrocrushing drilling | Cato Russell McDaniel, William Walter Shumway | 2020-02-11 |
| 10557073 | Drilling fluid for downhole electrocrushing drilling | William Walter Shumway | 2020-02-11 |
| 10435610 | Drilling fluid for downhole electrocrushing drilling | Dale E. Jamison, William Walter Shumway | 2019-10-08 |
| 10316237 | Drilling fluid for downhole electrocrushing drilling | William Walter Shumway | 2019-06-11 |
| 10208540 | Non-toxic, inexpensive, low viscosity mineral oil based drilling fluid | Christopher E. Johnson | 2019-02-19 |
| 10060189 | Hexadecene synthetic drilling fluid with improved environmental properties | Stephen J. Miller | 2018-08-28 |
| 8222018 | Gordonia sihwensis strain and uses thereof | — | 2012-07-17 |
| 6255256 | Non-toxic, inexpensive synthetic drilling fluid | — | 2001-07-03 |
| 6159907 | Method for treating a well employing a non-toxic, inexpensive fluid | — | 2000-12-12 |
| 6110874 | Non-toxic, inexpensive synthetic drilling fluid | — | 2000-08-29 |
| 6107255 | Non-toxic inexpensive synthetic drilling fluid | — | 2000-08-22 |
| 6034037 | Non-toxic inexpensive synthetic drilling fluid | — | 2000-03-07 |
| 6017854 | Simplified mud systems | — | 2000-01-25 |
| 5958845 | Non-toxic, inexpensive synthetic drilling fluid | — | 1999-09-28 |
| 5788781 | Method for cleaning an oil-coated substrate | — | 1998-08-04 |
| 5780407 | Solvent soaps and methods employing same | — | 1998-07-14 |
| 5723423 | Solvent soaps and methods employing same | — | 1998-03-03 |
| 5710111 | Solids-free wellbore fluid | — | 1998-01-20 |
| 5700763 | Thermally stable oil-based drilling fluid | — | 1997-12-23 |