Description
Class F23L : AIR SUPPLY; DRAUGHT-INDUCING; SUPPLYING NON-COMBUSTIBLE LIQUID OR GAS
Subclass 3/00: Arrangements of valves or dampers before the fire
F23L 3/00
Sub-Class
Stats
- 33 US PATENTS IN FORCE
- 5 US APPLICATIONS PENDING
- 12 Total Patent Owners
- 170 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12247744 | Indexed vent for natural draft cooking devices | Dec 20, 21 | Mar 11, 25 | W.C. Bradley Co. |
| 12092328 | Systems and methods for extending the turndown ratio of gas-fired burner systems | May 30, 23 | Sep 17, 24 | Rheem Manufacturing Company |
| 12038173 | Coal-fired power generation system and air heat with recirculation path and related method | Nov 12, 21 | Jul 16, 24 | Orlando Utilities Commission |
| 11859830 | Oven gas burner shutter with ducted inlet | Nov 16, 20 | Jan 02, 24 | Haier US Appliance Solutions, Inc. |
| 11821624 | Multi-fuel isolated impulse initiator | Oct 05, 21 | Nov 21, 23 | Bright Sand, Inc. |
| 11708999 | Biomass heating system with optimized flue gas treatment | Sep 03, 20 | Jul 25, 23 | SL-TECHNIK GMBH |
| 11703224 | Systems and methods for extending the turndown ratio of gas-fired burner systems | Apr 17, 20 | Jul 18, 23 | Rheem Manufacturing Company |
| 11512874 | Heat source device | Mar 27, 20 | Nov 29, 22 | Rinnai Corporation |
| 11333400 | Hot water storage-type boiler having both heat amount proportional control function and backflow prevention function | Oct 16, 19 | May 17, 22 | Not available |
| 11291334 | Grill apparatus and firebox assembly for use in a grill | Jan 29, 20 | Apr 05, 22 | NEWAGE PRODUCTS, INC. |
| 11242989 | Combustion apparatus | Sep 13, 19 | Feb 08, 22 | Harris Multi Jet Burner Ltd |
| 10527282 | Managed biochar kiln | Jun 04, 18 | Jan 07, 20 | BIOCHAR NOW, LLC |
| 10323845 | Airflow control and heat recovery in a managed kiln | Aug 21, 17 | Jun 18, 19 | BIOCHAR NOW, LLC |
| 10253979 | Flow regulation for a biochar kiln | Jun 04, 18 | Apr 09, 19 | BIOCHAR NOW, LLC |
| 10160911 | Exhaust system for a biochar kiln | Jun 04, 18 | Dec 25, 18 | BIOCHAR NOW, LLC |
| 10161631 | Self-powered damper system | Dec 08, 16 | Dec 25, 18 | Field Controls LLC |
| 10138424 | Exhaust system for a biochar kiln | Jun 04, 18 | Nov 27, 18 | BIOCHAR NOW, LLC |
| 9803870 | Method for burning a fuel in a wood stove, a wood stove with a controller; and an air regulator for a wood stove | Nov 07, 12 | Oct 31, 17 | IHS INNOVATION APS |
| 9752078 | Airflow control and heat recovery in a managed kiln | Mar 09, 13 | Sep 05, 17 | BIOCHAR NOW, LLC |
| 9709264 | Dual venturi for water heater | Jan 21, 13 | Jul 18, 17 | KYUNGDONG NAVIEN CO., LTD. |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2024/0401,803 | HIGH TURNDOWN COMBUSTION SYSTEM AND METHOD | May 30, 23 | Dec 05, 24 | Not available |
| 2024/0053,006 | COMPENSATOR FOR CONTROLLING AIRFLOW IN FIRED HEATER | Aug 09, 23 | Feb 15, 24 | Not available |
| 2023/0213,181 | LOW NOX GAS BURNER WITH COOLED FLUE GAS RECYCLE | Dec 07, 22 | Jul 06, 23 | Not available |
| 2018/0072,953 | AIRFLOW CONTROL AND HEAT RECOVERY IN A MANAGED KILN | Nov 15, 17 | Mar 15, 18 | BIOCHAR NOW, LLC |
| 2016/0161,117 | METHOD FOR OPERATING A MULTI-BURNER SYSTEM BY MEANS OF COMBUSTION AIR PRESSURE MEASUREMENT AND REGULATION | Jul 28, 14 | Jun 09, 16 | Not available |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 27 Months (last 2 years Issuances)
- 27 Months (last 5 years Issuances)