Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11829056 | Grade annunciator | Christopher W. Blomquist, Carl Flatman, Carl Wahlstrom, Mike O'Heron | 2023-11-28 |
| 10845682 | Grade annunciator | Christopher W. Blomquist, Carl Flatman, Carl Wahlstrom, Mike O'Heron | 2020-11-24 |
| 9874803 | Grade annunciator | Christopher W. Blomquist, Carl Flatman, Carl Wahlstrom, Mike O'Heron | 2018-01-23 |