Furnace Controlled Patents (Class 236/15R)
- Solid fuel burning (Class 236/15BA)
- Product and furnace temperature sensor (Class 236/15BB)
- With conveyor thru furnace (Class 236/15BC)
- Air and fuel control (Class 236/15BD)
- Recuperator, gas turbine, melting furnace (Class 236/15BE)
- Specialized furnace or heater, e.g., crystal growing (Class 236/15BF)
- Timer or program (Class 236/15BG)