Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9085779 | Processes for producing h2s using sulphur-reducing bacteria | David Kratochvil, Maxmillian Nodwell | 2015-07-21 |
| 8840793 | Selective sulphate removal by exclusive anion exchange from hard water waste streams | David Kratochvil | 2014-09-23 |
| 8747678 | Nickel sulphide precipitation process | Rick Eugene LAWRENCE, David Kratochvil | 2014-06-10 |
| 8551340 | Method for selective sulphate removal by exclusive anion exchange from hard water waste streams | David Kratochuil | 2013-10-08 |