Issued Patents All Time
Showing 26–50 of 65 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9170016 | Dual fuel heater with selector valve | — | 2015-10-27 |
| 9140457 | Dual fuel heating system and air shutter | — | 2015-09-22 |
| 9097422 | Control valves for heaters and fireplace devices | — | 2015-08-04 |
| 9091431 | Dual fuel valve with air shutter adjustment | — | 2015-07-28 |
| 9022064 | Dual fuel control device with auxiliary backline pressure regulator | — | 2015-05-05 |
| 9021859 | Heating system | — | 2015-05-05 |
| 8985094 | Heating system | — | 2015-03-24 |
| 8915239 | Dual fuel heater with selector valve | — | 2014-12-23 |
| 8851065 | Dual fuel heating system with pressure sensitive nozzle | — | 2014-10-07 |
| 8764436 | Valve assemblies for heating devices | — | 2014-07-01 |
| 8757139 | Dual fuel heating system and air shutter | — | 2014-06-24 |
| 8757202 | Dual fuel heating source | — | 2014-06-24 |
| 8752541 | Heating system | — | 2014-06-17 |
| 8568136 | Heater configured to operate with a first or second fuel | — | 2013-10-29 |
| 8545216 | Valve assemblies for heating devices | — | 2013-10-01 |
| 8516878 | Dual fuel heater | — | 2013-08-27 |
| 8517718 | Dual fuel heating source | — | 2013-08-27 |
| 8506290 | Heating apparatus with air shutter adjustment | — | 2013-08-13 |
| 8465277 | Heat engine with nozzle | — | 2013-06-18 |
| 8317511 | Control valves for heaters and fireplace devices | — | 2012-11-27 |
| 8297968 | Pilot assemblies for heating devices | — | 2012-10-30 |
| 8281781 | Dual fuel heater | — | 2012-10-09 |
| 8241034 | Fuel selection valve assemblies | — | 2012-08-14 |
| 8235708 | Heater configured to operate with a first or second fuel | — | 2012-08-07 |
| 8152515 | Fuel selectable heating devices | — | 2012-04-10 |