Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8561993 | Target impact-point sensing system | Steven Preston, James A. Frey | 2013-10-22 |
| 8449298 | Optical alignment device for a weapon simulator using an optical simulation beam | Peter F. Reardon, Steven Preston, Thomas H. Penner | 2013-05-28 |