Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12274961 | Apparatus with improved grit removal | Lilunnahar Deju, Alexander P. Zuzelski, Rodney S. Mrkvicka | 2025-04-15 |
| 11371234 | Circular parallel plate grit remover | Lilunnahar Deju, Alexander P. Zuzelski, Rodney S. Mrkvicka | 2022-06-28 |
| 9886018 | Pump control for operation on a variable pressure force main | Robert A. Grove, Rodney S. Mrkvicka, Donald J. Aholt | 2018-02-06 |
| 9662666 | Vortex-type grit chamber | Francis M. Noonan, Frederick Trentadue, Dale White, Rodney S. Mrkvicka | 2017-05-30 |
| 9334178 | Vortex-type grit chamber | Francis M. Noonan, Frederick Trentadue, Dale White, Rodney S. Mrkvicka | 2016-05-10 |
| 8460560 | Variable influent flow channel baffle | Rodney S. Mrkvicka | 2013-06-11 |
| D525620 | Organizer | Hartmut H. Esslinger | 2006-07-25 |
| 6811697 | Apparatus and method for extracting particles from a fluid stream | Robert Davis, Frank G. Weis | 2004-11-02 |
| 5086934 | Radiographic file holder | — | 1992-02-11 |