Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11313188 | Systems, apparatuses, and methods for treating drilling fluid | Rennie K. Zazula, Donald T. Crosswhite | 2022-04-26 |
| 11293241 | Method and apparatus for the recovery of drilling fluid from shaker tailings during active drilling | Rennie K. Zazula, Mike Olson, Neil Mackley | 2022-04-05 |
| 10704345 | Method and apparatus for the recovery of drilling fluid from shaker tailings during active drilling | Rennie K. Zazula, Mike Olson, Niel P. MACKLEY | 2020-07-07 |
| 10233706 | System, apparatus, and method for recovering barite from drilling fluid | Rennie K. Zazula, Donald T. Crosswhite | 2019-03-19 |
| 8133164 | Transportable systems for treating drilling fluid | Randy Charles Beebe, Donald T. Crosswhite, Larry Jona Kellert, James Joseph Tait | 2012-03-13 |