Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11194213 | Electrochromic panel transmission level synchronization | Paul Nagel, Wally Barnum, Jason Litzinger, Steve Coffin | 2021-12-07 |
| 11106104 | Distributed energy management system | Walter Thomas Barnum, Douglas Frederick Brainard | 2021-08-31 |