Rapid exhaust catalyst heating using a glow plug
US-2025277464-A1 · Sep 4, 2025 · US
Construction of thermal reactors
Construction of thermal reactors · 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 | F01N3/26 |
| Official title | Construction of thermal reactors |
| Display label | Construction of thermal reactors |
| Total patents | 48 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 4 |
| 2017 | 9 |
| 2018 | 1 |
| 2019 | 3 |
| 2020 | 7 |
| 2021 | 3 |
| 2022 | 6 |
| 2023 | 4 |
| 2024 | 2 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Heat-Insulated Interface Arrangement and Exhaust Gas Aftertreatment Device
US-2025257677-A1 · Aug 14, 2025 · US
Heating device for an exhaust system of an internal combustion engine
US-12338761-B2 · Jun 24, 2025 · US
Systems and methods for reducing emissions with smart alternator
US-2025026351-A1 · Jan 23, 2025 · US
Systems and methods for reducing emissions with smart alternator
US-12128898-B2 · Oct 29, 2024 · US
Heating Device for an Exhaust System of an Internal Combustion Engine
US-2024175387-A1 · May 30, 2024 · US
Heating unit for an exhaust-gas system of an internal combustion engine
US-11781459-B2 · Oct 10, 2023 · US
Heating unit for an exhaust-gas system of an internal combustion engine
US-2023136357-A1 · May 4, 2023 · US
Exhaust gas heating arrangement
US-11572817-B2 · Feb 7, 2023 · US
Exhaust gas treatment by thermal diffusion
US-11555434-B1 · Jan 17, 2023 · US
Tubular member for exhaust gas treatment device and exhaust gas treatment device using the tubular member, and method of manufacturing tubular member for exhaust gas treatment device
US-11536180-B2 · Dec 27, 2022 · US
Exhaust-gas tract for a motor vehicle
US-11525379-B2 · Dec 13, 2022 · US
Systems and methods for reducing emissions with smart alternator
US-2022388514-A1 · Dec 8, 2022 · US
Tubular member for exhaust gas treatment device and exhaust gas treatment device using the tubular member, and method of manufacturing tubular member for exhaust gas treatment device
US-2022275745-A1 · Sep 1, 2022 · US
Exhaust-gas tract for a motor vehicle
US-2022112826-A1 · Apr 14, 2022 · US
Exhaust gas heating arrangement
US-2022049638-A1 · Feb 17, 2022 · US
Exhaust gas heating device, associated exhaust line and vehicle
US-11174771-B2 · Nov 16, 2021 · US
Exhaust component with a helical heater
US-11105239-B2 · Aug 31, 2021 · US
Exhaust gas heating device, associated exhaust line and vehicle
US-2021123369-A1 · Apr 29, 2021 · US
Exhaust component with a helical heater
US-2020408124-A1 · Dec 31, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01N3/26?
- CPC F01N3/26 is the Cooperative Patent Classification code for “Construction of thermal reactors.”
- How many patents are filed under CPC F01N3/26 (Construction of thermal reactors)?
- Our database includes 48 publications tagged with this CPC code.
- Is patent activity under CPC F01N3/26 growing?
- Publication counts under this code: 2 in 2024 vs 4 in 2025 (latest complete years).