Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4605369 | Radiant burner | — | 1986-08-12 |
| 4533318 | Radiant burner | — | 1985-08-06 |
| 4354823 | Non-air cooled radiant burner | Werner H. Zwipf | 1982-10-19 |
| 4266117 | Self-ventilating infra-red ray heater | Ray L. Pardue | 1981-05-05 |
| 4255123 | Non-warping radiant burner construction | William Bishilany, Werner H. Zwipf | 1981-03-10 |
| 4200085 | Dolly-type heating device with heater section adjustability | — | 1980-04-29 |