Environmental facility supporting structure of vertical heat recovery steam generator
US-2025297558-A1 · Sep 25, 2025 · US
Flue or fire tubes; Accessories therefor, e.g. fire-tube inserts
Flue or fire tubes; Accessories therefor, e.g. fire-tube inserts · 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 | F22B37/06 |
| Official title | Flue or fire tubes; Accessories therefor, e.g. fire-tube inserts |
| Display label | Flue or fire tubes; Accessories therefor, e.g. fire-tube inserts |
| Total patents | 26 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 3 |
| 2018 | 4 |
| 2019 | 1 |
| 2020 | 2 |
| 2021 | 3 |
| 2022 | 4 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Inlet duct system for a heat recovery steam generator
US-12253004-B1 · Mar 18, 2025 · US
Heat damper for a waste heat recovery unit and waste heat recovery unit comprising a heat damper
US-2025067427-A1 · Feb 27, 2025 · US
Tube sheet protection in a process gas waste heat boiler
US-2025052414-A1 · Feb 13, 2025 · US
Steam discharge pipe blowback protection system
US-12116907-B1 · Oct 15, 2024 · US
Heat exchange tube of waste heat boiler
US-11796170-B2 · Oct 24, 2023 · US
Baffles for thermal transfer devices
US-11754318-B2 · Sep 12, 2023 · US
Baffles for thermal transfer devices
US-2022268486-A1 · Aug 25, 2022 · US
Heat exchange tube of waste heat boiler
US-2022243908-A1 · Aug 4, 2022 · US
Baffles for thermal transfer devices
US-11333398-B2 · May 17, 2022 · US
Baffles For Thermal Transfer Devices
US-2022057110-A1 · Feb 24, 2022 · US
Supporting beam arrangement for supporting a flue gas duct
US-11162675-B2 · Nov 2, 2021 · US
Baffles for thermal transfer devices
US-11162709-B2 · Nov 2, 2021 · US
Baffles For Thermal Transfer Devices
US-2021190375-A1 · Jun 24, 2021 · US
Supporting beam arrangement for supporting a flue gas duct
US-2020386399-A1 · Dec 10, 2020 · US
Waste heat boiler system, mixing chamber, and method for cooling a process gas
US-10782073-B2 · Sep 22, 2020 · US
System, method and apparatus for minimizing heat loss in a heat recovery steam generator
US-10267183-B2 · Apr 23, 2019 · US
System, method and apparatus for minimizing heat loss in a heat recovery steam generator
US-10161268-B2 · Dec 25, 2018 · US
System and method for heating components of a heat recovery steam generator
US-9995170-B2 · Jun 12, 2018 · US
Thermal device, its use, and method for heating a heat transfer medium
US-9989318-B2 · Jun 5, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F22B37/06?
- CPC F22B37/06 is the Cooperative Patent Classification code for “Flue or fire tubes; Accessories therefor, e.g. fire-tube inserts.”
- How many patents are filed under CPC F22B37/06 (Flue or fire tubes; Accessories therefor, e.g. fire-tube inserts)?
- Our database includes 26 publications tagged with this CPC code.
- Is patent activity under CPC F22B37/06 growing?
- Publication counts under this code: 1 in 2024 vs 4 in 2025 (latest complete years).