Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8037900 | Bi-directional adjustable energy dissipating near zero leakage head loss valve | — | 2011-10-18 |
| 6886595 | Bi-directional adjustable energy dissipating and head loss valve | Amzad Ali | 2005-05-03 |
| 6561517 | Packing device for rotary valves | — | 2003-05-13 |
| 6221002 | Method to reduce hexavalent chromium in soils, sediments, industrial wastes and other contaminated materials using ascorbic acid | — | 2001-04-24 |
| 5951457 | Method to reduce hexavelant chromium in soils, sediments, industrial waste and other contaminated materials using ascorbic acid | — | 1999-09-14 |
| 4815693 | Valve with actuating handle operable in different quadrants | Leslie Calder | 1989-03-28 |
| 4736808 | Percussive tool with high pressure fluid jet | John Dorscht | 1988-04-12 |