Steam generator and car washer with steam generator
US-11525572-B2 · Dec 13, 2022 · US
Passages or apertures for delivering primary air for combustion (baffles or deflectors in air inlets F23M9/02)
Passages or apertures for delivering primary air for combustion (baffles or deflectors in air inlets F23M9/02) · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F23L1/00 |
| Official title | Passages or apertures for delivering primary air for combustion (baffles or deflectors in air inlets F23M9/02) |
| Display label | Passages or apertures for delivering primary air for combustion (baffles or deflectors in air inlets F23M9/02) |
| Total patents | 82 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 4 |
| 2017 | 8 |
| 2018 | 6 |
| 2019 | 9 |
| 2020 | 6 |
| 2021 | 9 |
| 2022 | 14 |
| 2023 | 8 |
| 2024 | 7 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Water heater
US-11512871-B2 · Nov 29, 2022 · US
Modifiable Premix Combustion System And Premix Blower For Elevation Compensation
US-2022196237-A1 · Jun 23, 2022 · US
Flamed-based vacuum generator
US-2022176520-A1 · Jun 9, 2022 · US
Solid fuel burner and combustion device
US-11346546-B2 · May 31, 2022 · US
Combustible waste injection device and method for operating the same
US-2022163198-A1 · May 26, 2022 · US
Air supply duct for fan and combustion device including the same
US-2022163158-A1 · May 26, 2022 · US
Oven gas burner shutter with ducted inlet
US-2022154936-A1 · May 19, 2022 · US
Blowing device and combustion device including same
US-2022128065-A1 · Apr 28, 2022 · US
Cooking appliance with top breathing burner having bottom breathing assist through top sheet
US-11287138-B2 · Mar 29, 2022 · US
Heat exchanger and hot water apparatus
US-11287158-B2 · Mar 29, 2022 · US
Steam Generator and Car Washer with Steam Generator
US-2021364162-A1 · Nov 25, 2021 · US
Systems and methods for extending the turndown ratio of gas-fired burner systems
US-2021325042-A1 · Oct 21, 2021 · US
Trapezoidal air distribution baffle
US-2021317985-A1 · Oct 14, 2021 · US
Cement kiln burner device and method for operating the same
US-11112111-B2 · Sep 7, 2021 · US
Additional primary air access for surface gas burners
US-11098891-B2 · Aug 24, 2021 · US
Cement kiln burner device and method for operating the same
US-2021222875-A1 · Jul 22, 2021 · US
Cement kiln burner device and method for operating the same
US-2021222874-A1 · Jul 22, 2021 · US
Gas burner and hob comprising a gas burner
US-10928061-B2 · Feb 23, 2021 · US
Modifiable Premix Combustion System And Premix Blower For Elevation Compensation
US-2021033280-A1 · Feb 4, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F23L1/00?
- CPC F23L1/00 is the Cooperative Patent Classification code for “Passages or apertures for delivering primary air for combustion (baffles or deflectors in air inlets F23M9/02).”
- How many patents are filed under CPC F23L1/00 (Passages or apertures for delivering primary air for combustion (baffles or deflectors in air inlets F23M9/02))?
- Our database includes 82 publications tagged with this CPC code.
- Is patent activity under CPC F23L1/00 growing?
- Publication counts under this code: 7 in 2024 vs 4 in 2025 (latest complete years).