Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9096789 | Method for the use of nitrates and nitrate reducing bacteria in hydraulic fracturing | Michael L. Harless | 2015-08-04 |
| 8771603 | Method for removal of hydrogen sulfide from geothermal steam and condensate | Michael L. Harless | 2014-07-08 |
| 8354087 | Method for removal of hydrogen sulfide from geothermal steam and condensate | Michael L. Harless | 2013-01-15 |
| 5302296 | Water clarification using compositions containing a water clarifier component and a floc modifier component | Eric J. Evain, Hartley H. Downs | 1994-04-12 |
| 5190683 | Water clarification composition containing a water clarifier component and a floc modifier component | Eric J. Evain, Hartley H. Downs | 1993-03-02 |
| 5006274 | Additive for clarifying aqueous systems without production of uncontrollable floc | Urban C. Conkle, Hartley H. Downs | 1991-04-09 |
| 4855060 | Method and additive for clarifying aqueous systems without production of uncontrollable floc | Urban C. Conkle, Hartley H. Downs | 1989-08-08 |