Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6858280 | Microsphere insulation systems | Mark S. Allen, Gary S. Willen | 2005-02-22 |
| 6595006 | Miniature reciprocating heat pumps and engines | Jack Hugo Thiesen, Gary S. Willen | 2003-07-22 |