Methods and systems for a fuel operated heater
US-12460567-B2 · Nov 4, 2025 · US
the combustion space being a chamber substantially at atmospheric pressure
the combustion space being a chamber substantially at atmospheric pressure · 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 | F23D11/02 |
| Official title | the combustion space being a chamber substantially at atmospheric pressure |
| Display label | the combustion space being a chamber substantially at atmospheric pressure |
| Total patents | 32 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 7 |
| 2017 | 4 |
| 2018 | 3 |
| 2019 | 4 |
| 2021 | 1 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Burner assembly for a mobile heating device and insert component with retaining ring for an evaporator
US-2025242663-A1 · Jul 31, 2025 · US
Methods and systems for a fuel operated heater
US-2025237164-A1 · Jul 24, 2025 · US
Fuel combustion system with a perforated reaction holder
US-11156356-B2 · Oct 26, 2021 · US
Fuel combustion system with a perforated reaction holder
US-2019277492-A1 · Sep 12, 2019 · US
Fuel combustion system with a perforated reaction holder
US-10337729-B2 · Jul 2, 2019 · US
Perforated flame holder support structure with heating element
US-2019137096-A1 · May 9, 2019 · US
Startup method and mechanism for a burner having a perforated flame holder
US-2019003705-A1 · Jan 3, 2019 · US
Startup method and mechanism for a burner having a perforated flame holder
US-10077899-B2 · Sep 18, 2018 · US
Burner system employing multiple perforated flame holders, and method of operation
US-10066833-B2 · Sep 4, 2018 · US
Fuel combustion system with a perforated reaction holder
US-2018003378-A1 · Jan 4, 2018 · US
Fuel combustion system with a perforated reaction holder
US-9797595-B2 · Oct 24, 2017 · US
Burner
US-9765662-B2 · Sep 19, 2017 · US
Burner
US-9746175-B2 · Aug 29, 2017 · US
Burner with a series of fuel gas ejectors and a perforated flame holder
US-9562682-B2 · Feb 7, 2017 · US
Burner with a perforated reaction holder and heating apparatus
US-9447965-B2 · Sep 20, 2016 · US
Burner system employing multiple perforated flame holders, and method of operation
US-2016230984-A1 · Aug 11, 2016 · US
Crude Oil Spray Combustor
US-2016223196-A1 · Aug 4, 2016 · US
Ignition device
US-9395083-B2 · Jul 19, 2016 · US
Method for flame location transition from a start-up location to a perforated flame holder
US-9388981-B2 · Jul 12, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F23D11/02?
- CPC F23D11/02 is the Cooperative Patent Classification code for “the combustion space being a chamber substantially at atmospheric pressure.”
- How many patents are filed under CPC F23D11/02 (the combustion space being a chamber substantially at atmospheric pressure)?
- Our database includes 32 publications tagged with this CPC code.
- Is patent activity under CPC F23D11/02 growing?
- Publication counts under this code: 1 in 2021 vs 3 in 2025 (latest complete years).