Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6911745 | Windmill apparatus | Allan E. Schrum | 2005-06-28 |
| 5797276 | Methods and devices for energy conservation in refrigerated chambers | Allan E. Schrum | 1998-08-25 |
| 5488835 | Methods and devices for energy conservation in refrigerated chambers | Allan E. Schrum | 1996-02-06 |