Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9739391 | Check valve for a pipe section | — | 2017-08-22 |
| 9662666 | Vortex-type grit chamber | Francis M. Noonan, John K. Kelly, Dale White, Rodney S. Mrkvicka | 2017-05-30 |
| 9334178 | Vortex-type grit chamber | Francis M. Noonan, John K. Kelly, Dale White, Rodney S. Mrkvicka | 2016-05-10 |
| 7441754 | Apparatus for introducing a gas into a body of liquid | Fredric H. Avers, Dan Alexander, Rodney S. Mrkvicka, James A. Bell, Andrew McCullough | 2008-10-28 |
| 4817581 | Adjustable support for cutting apparatus | — | 1989-04-04 |