Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10612800 | High efficiency heating and/or cooling system and methods | Gilbert Staffend, Nancy A. Staffend | 2020-04-07 |
| 9897336 | High efficiency air delivery system and method | Gilbert Staffend, Nancy A. Staffend | 2018-02-20 |