Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7050888 | Control system and method of controlling ammonium absorption refrigerators | Mark Hipple | 2006-05-23 |
| 5806787 | Folding wire reel stand | — | 1998-09-15 |
| 4644343 | Y-slot waveguide antenna element | Margaret S. Morse, John Tjoelker | 1987-02-17 |