Description
Class F23L : AIR SUPPLY; DRAUGHT-INDUCING; SUPPLYING NON-COMBUSTIBLE LIQUID OR GAS
Subclass 1/00: Passages or apertures for delivering primary air for combustion
F23L 1/00
Sub-Class
Stats
- 60 US PATENTS IN FORCE
- 3 US APPLICATIONS PENDING
- 21 Total Patent Owners
- 301 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12157205 | Flamed-based vacuum generator | Dec 08, 21 | Dec 03, 24 | ZHEJIANG UNIVERSITY |
| 12092253 | Air supply duct for fan and combustion device including the same | Nov 03, 21 | Sep 17, 24 | Noritz Corporation |
| 12092328 | Systems and methods for extending the turndown ratio of gas-fired burner systems | May 30, 23 | Sep 17, 24 | Rheem Manufacturing Company |
| 11982446 | Optimized overfire air nozzles, system and strategy | Aug 18, 21 | May 14, 24 | Not available |
| 11859830 | Oven gas burner shutter with ducted inlet | Nov 16, 20 | Jan 02, 24 | Haier US Appliance Solutions, Inc. |
| 11808449 | Fresh air intake for low NOx emission furnace | Jul 10, 20 | Nov 07, 23 | Lennox Industries 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 |
| 11661560 | Waste-to-energy conversion system | Dec 17, 20 | May 30, 23 | PREMIER GREEN ENERGY HOLDINGS LIMITED |
| 11512871 | Water heater | Mar 18, 20 | Nov 29, 22 | Noritz Corporation |
| 11499712 | Gas burner for cooking appliances | Jun 11, 18 | Nov 15, 22 | Not available |
| 11421871 | Combustible waste injection device and method for operating the same | Aug 14, 19 | Aug 23, 22 | Taiheiyo Cement Corporation |
| 11346546 | Solid fuel burner and combustion device | Apr 16, 18 | May 31, 22 | MITSUBISHI POWER, LTD. |
| 11306915 | Cement kiln burner device and method for operating the same | Sep 26, 18 | Apr 19, 22 | Taiheiyo Cement Corporation |
| 11287158 | Heat exchanger and hot water apparatus | Nov 01, 18 | Mar 29, 22 | Noritz Corporation |
| 11112111 | Cement kiln burner device and method for operating the same | Sep 26, 18 | Sep 07, 21 | Taiheiyo Cement Corporation |
| 11098891 | Additional primary air access for surface gas burners | Jan 18, 19 | Aug 24, 21 | Whirlpool Corporation |
| 10941935 | Evaporation type burner | Sep 14, 17 | Mar 09, 21 | SANGO CO., LTD. |
| 10928061 | Gas burner and hob comprising a gas burner | Nov 04, 16 | Feb 23, 21 | Electrolux Appliances Aktiebolag |
| 10889771 | Waste-to-energy conversion system | Apr 04, 17 | Jan 12, 21 | PREMIER GREEN ENERGY HOLDINGS LIMITED |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2023/0400,183 | BURNER UNIT | Sep 13, 21 | Dec 14, 23 | Not available |
| 2016/0363,324 | SINGLE BURN RATE SOLID FUEL HEATING APPLIANCE WITH MANAGED AIRFLOW | Jun 15, 16 | Dec 15, 16 | Not available |
| 2015/0300,638 | Device for Centrifugal Combustion by Area Using Flow of Combustion Air | Nov 13, 13 | Oct 22, 15 | POSCO |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 32 Months (last 2 years Issuances)
- 32 Months (last 5 years Issuances)