Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11460215 | Pre-insulated ductwork railing technology | James M. Lubratt | 2022-10-04 |
| 10648694 | Multi-tube offset pre-insulated HVAC ducting technology | James M. Lubratt | 2020-05-12 |
| 10234168 | Multi-tube offset pre-insulated HVAC ducting technology | James M. Lubratt | 2019-03-19 |