Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11113992 | Spray pattern demonstration kit | Eric P. Spandl, Mark Ledebuhr | 2021-09-07 |
| 10497285 | Spray pattern demonstration kit | Eric P. Spandl, Mark Ledebuhr | 2019-12-03 |
| 10032390 | Spray pattern demonstration kit | Eric P. Spandl, Mark Ledebuhr | 2018-07-24 |
| 9620032 | Spray pattern demonstration kit | Eric P. Spandl, Mark Ledebuhr | 2017-04-11 |