Mobile air heater
US-2026029161-A1 · Jan 29, 2026 · US
using fluid fuel
using fluid fuel · 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 | F24H3/105 |
| Official title | {using fluid fuel} |
| Display label | using fluid fuel |
| 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 |
|---|---|
| 2016 | 3 |
| 2017 | 4 |
| 2018 | 5 |
| 2019 | 3 |
| 2020 | 4 |
| 2021 | 4 |
| 2022 | 2 |
| 2023 | 4 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Gas furnace and air conditioner having the same
US-12467660-B2 · Nov 11, 2025 · US
Gas furnace and air conditioner having the same
US-12460837-B2 · Nov 4, 2025 · US
Gas furnace and air conditioner having the same
US-2023141194-A1 · May 11, 2023 · US
Gas furnace and air conditioner having the same
US-2023147831-A1 · May 11, 2023 · US
Gas furnace and air conditioner having the same
US-2023148075-A1 · May 11, 2023 · US
Gas furnace
US-11629883-B2 · Apr 18, 2023 · US
Condensate water trap for gas furnace
US-11519636-B2 · Dec 6, 2022 · US
Clamshell Heat Exchangers
US-2022290896-A1 · Sep 15, 2022 · US
Efficient baffle design for hybrid heating and cooling system
US-2021341156-A1 · Nov 4, 2021 · US
Strain reduction clamshell heat exchanger design
US-10935279-B2 · Mar 2, 2021 · US
Condensate water trap for gas furnace
US-2021033306-A1 · Feb 4, 2021 · US
Gas furnace
US-2021025621-A1 · Jan 28, 2021 · US
Apparatus and method for sound reduction of high efficiency furnaces
US-10753607-B2 · Aug 25, 2020 · US
Gravity-style furnace subunit inside a gas-induced draft furnace
US-10584897-B2 · Mar 10, 2020 · US
Reverse combustion type combustion apparatus
US-10571152-B2 · Feb 25, 2020 · US
Gas furnace
US-2020033027-A1 · Jan 30, 2020 · US
Combustion acoustic noise prevention in a heating furnace
US-10344975-B2 · Jul 9, 2019 · US
Apparatus and method for sound reduction of high efficiency furnaces
US-2019178493-A1 · Jun 13, 2019 · US
Strain reduction clamshell heat exchanger design
US-2019056144-A1 · Feb 21, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F24H3/105?
- CPC F24H3/105 is the Cooperative Patent Classification code for “using fluid fuel.”
- How many patents are filed under CPC F24H3/105 (using fluid fuel)?
- Our database includes 32 publications tagged with this CPC code.
- Is patent activity under CPC F24H3/105 growing?
- Publication counts under this code: 4 in 2023 vs 2 in 2025 (latest complete years).