Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11162677 | Air intake coupling with noise suppression for low NOx emission furnace | Leonor BEAKLEY | 2021-11-02 |
| 10253981 | Furnace, a method for operating a furnace and a furnace controller configured for the same | Glenn W. Kowald | 2019-04-09 |
| 9765965 | Furnace, a method for operating a furnace and a furnace controller configured for the same | Glenn W. Kowald | 2017-09-19 |
| 9335045 | Furnace, a method for operating a furnace and a furnace controller configured for the same | Glenn W. Kowald | 2016-05-10 |
| 6491514 | Furnace burner box assembly with reduced acoustic emissions | Nabil George Hamad, Glenn William Kowald | 2002-12-10 |