Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9640044 | Directional beacon device | Ronald Graczyk, Michael Primm, Dale E. Parvey, Ryan Joy | 2017-05-02 |
| 8736829 | Directional beacon device | Ronald C. Graczyk, Michael Primm, Dale E. Parvey, Ryan Joy | 2014-05-27 |
| 8144056 | Directional beacon device | Ronald C. Graczyk, Michael Primm, Dale E. Parvey, Ryan Joy | 2012-03-27 |