Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10066171 | Method for stripping and extraction of used lubricating oil | Christopher Lobue | 2018-09-04 |
| 8523764 | Remote viewing apparatus | Clifford Hatcher, Jr. | 2013-09-03 |
| 7374529 | Liner for a centrifuge discharge port | Lee Hilpert | 2008-05-20 |
| 7255670 | Three phase decanter centrifuge | Lee Hilpert | 2007-08-14 |
| 7001324 | Method of retrofitting a decanting centrifuge | Lee Hilpert | 2006-02-21 |
| 6823721 | Method and system for mass flow balance accounting | Lee Hilpert | 2004-11-30 |
| 6823238 | Selective apparatus and method for removing an undesirable cut from drilling fluid | Lee Hilpert | 2004-11-23 |
| 6711830 | Cuttings treatment system | Lee Hilpert | 2004-03-30 |
| 6607659 | Drilling mud reclamation system with mass flow sensors | Lee Hilpert | 2003-08-19 |
| 6590769 | Purge and cooling system for enclosure for hazardous environment | Lee Hilpert | 2003-07-08 |
| 6432299 | Cuttings dryer for removing liquid from a slurry | Lee Hilpert | 2002-08-13 |
| 6230899 | Sintered centrifuge separation system | — | 2001-05-15 |
| 6193076 | Drilling fluid purification method and apparatus | — | 2001-02-27 |
| 6155964 | Centrifuge drive system providing optimum performance | — | 2000-12-05 |
| 6073709 | Selective apparatus and method for removing an undesirable cut from drilling fluid | — | 2000-06-13 |
| 6030332 | Centrifuge system with stacked discs attached to the housing | — | 2000-02-29 |
| 5997652 | Food starch processing method and apparatus | J. Leon Potter | 1999-12-07 |
| 5800332 | Decanting centrifuge employing elements with differing rates of rotation | — | 1998-09-01 |
| 5403260 | Automatic frequency controlled motor backdrive | — | 1995-04-04 |
| 4557142 | Apparatus and method for real-time measurement of drilling fluid properties | Jan Marius Van Dokkum, Adrianus Groeneweg, Gerritt Stolk | 1985-12-10 |