Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11402131 | Hardened solar energy collector system | David Winks, Curtis A. Birnbach | 2022-08-02 |
| 11329480 | Series static spark gap for EMP protection | John Anthony Cappelletti, Curtis A. Birnbach | 2022-05-10 |
| 7198579 | Ball hitting practice apparatus | Robert Moss, Hawthon Smith | 2007-04-03 |
| 6790150 | Ball hitting practice apparatus | Robert Moss, Hawthon Smith | 2004-09-14 |
| 6729978 | Ball hitting practice apparatus | Robert Moss, Hawthon Smith | 2004-05-04 |