Plate-shaped heat insulator, combustion chamber, boiler and water heater
US-2025067431-A1 · Feb 27, 2025 · US
and characterised by material, e.g. use of special steel alloy
and characterised by material, e.g. use of special steel alloy · 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 | F22B37/04 |
| Official title | and characterised by material, e.g. use of special steel alloy |
| Display label | and characterised by material, e.g. use of special steel alloy |
| Total patents | 28 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 4 |
| 2018 | 4 |
| 2019 | 6 |
| 2020 | 5 |
| 2022 | 2 |
| 2023 | 3 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Tube sheet protection in a process gas waste heat boiler
US-2025052414-A1 · Feb 13, 2025 · US
Heat exchange tube of waste heat boiler
US-11796170-B2 · Oct 24, 2023 · US
Plate-shaped heat insulator, combustion chamber, boiler and water heater
US-2023151962-A1 · May 18, 2023 · US
Plate-shaped heat insulator, combustion chamber, boiler and water heater
US-2023151963-A1 · May 18, 2023 · US
Heat exchange tube of waste heat boiler
US-2022243908-A1 · Aug 4, 2022 · US
Ni-based alloy pipe for nuclear power
US-11215356-B2 · Jan 4, 2022 · US
Boiler, steam-generating plant provided with same, and method for operating boiler
US-10844753-B2 · Nov 24, 2020 · US
Apparatus and method for welding a waterwall panel
US-10731849-B2 · Aug 4, 2020 · US
Ni-BASED ALLOY PIPE FOR NUCLEAR POWER
US-2020158329-A1 · May 21, 2020 · US
Flow distribution device and method
US-10563527-B2 · Feb 18, 2020 · US
Processing apparatus
US-2020035513-A1 · Jan 30, 2020 · US
Austenitic alloy
US-10487378-B2 · Nov 26, 2019 · US
Heat-resistant and corrosion-resistant high-chromium nickel-based alloy with superior hot forgeability
US-10458005-B2 · Oct 29, 2019 · US
Flow distribution device and method
US-2019323367-A1 · Oct 24, 2019 · US
Martensitic steel with delayed z-phase formation, and component
US-2019169721-A1 · Jun 6, 2019 · US
Flow distribution device and method
US-10280772-B2 · May 7, 2019 · US
Heat-resistant and corrosion-resistant high-chromium nickel-based alloy with superior hot forgeability
US-2019062877-A1 · Feb 28, 2019 · US
Chemical solution injection system and chemical solution injection method
US-10032531-B2 · Jul 24, 2018 · US
Upside-down type low NOx boiler
US-9958153-B2 · May 1, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F22B37/04?
- CPC F22B37/04 is the Cooperative Patent Classification code for “and characterised by material, e.g. use of special steel alloy.”
- How many patents are filed under CPC F22B37/04 (and characterised by material, e.g. use of special steel alloy)?
- Our database includes 28 publications tagged with this CPC code.
- Is patent activity under CPC F22B37/04 growing?
- Publication counts under this code: 3 in 2023 vs 2 in 2025 (latest complete years).