Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5979854 | Strut apparatus for holding drywall panels and building materials in position | Janet Lundgren | 1999-11-09 |
| 5032766 | Special effects generator | Glenn Gundlach, William Mack Irwin | 1991-07-16 |