Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4784212 | Building perimeter thermal energy control system | William A. Hays, Jr., Dieter L. Rall | 1988-11-15 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4784212 | Building perimeter thermal energy control system | William A. Hays, Jr., Dieter L. Rall | 1988-11-15 |