Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10738550 | Treatment of recovered commercial solids for use in oilfield fluids | Chesnee Lae Davis, Katerina V. Newman, William Walter Shumway | 2020-08-11 |
| 7696131 | Diesel oil-based invert emulsion drilling fluids and methods of drilling boreholes | Kenneth Oyler, Gary C. West, Don Siems, Jeff Kirsner | 2010-04-13 |
| 7638466 | Thinners for invert emulsions | Heinz Mueller, Jeff Kirsner | 2009-12-29 |
| 7435706 | Thinners for invert emulsions | Heinz Mueller, Jeff Kirsner | 2008-10-14 |