Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D934383 | Electrostatic spray gun | Amelia J. Stech, Elisa J. McCline, Mark Richter | 2021-10-26 |
| D929539 | Electrostatic spray gun | Amelia J. Stech, Elisa J. McCline, Mark Richter | 2021-08-31 |
| D920486 | Transparently-wrapped electrostatic sprayer fluid tube | Mark Richter | 2021-05-25 |
| 10926275 | Electrostatic handheld sprayer | Robert W. Kinne, Diane L. Olson | 2021-02-23 |