Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10309090 | Ring grit remover | Dale White, Rodney S. Mrkvicka | 2019-06-04 |
| 9932731 | Ring grit remover | Dale White, Rodney S. Mrkvicka | 2018-04-03 |
| 9662666 | Vortex-type grit chamber | Frederick Trentadue, John K. Kelly, Dale White, Rodney S. Mrkvicka | 2017-05-30 |
| 9334178 | Vortex-type grit chamber | Frederick Trentadue, John K. Kelly, Dale White, Rodney S. Mrkvicka | 2016-05-10 |
| 8906233 | Ring grit remover with vanes | Harrison J. Messick, Frank G. Weis | 2014-12-09 |