Steam utilization system of factory producing concrete pipe pile
US-12485577-B2 · Dec 2, 2025 · US
Combinations of low- and high-pressure boilers {(combination of low- and high-pressure locomotive boilers of fire-box type F22B13/065)} · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F22B33/14 |
| Official title | Combinations of low- and high-pressure boilers {(combination of low- and high-pressure locomotive boilers of fire-box type F22B13/065)} |
| Display label | Combinations of low- and high-pressure boilers {(combination of low- and high-pressure locomotive boilers of fire-box type F22B13/065)} |
| Total patents | 12 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 3 |
| 2018 | 1 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 1 |
| 2025 | 2 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12485577-B2 · Dec 2, 2025 · US
US-12313255-B2 · May 27, 2025 · US
US-2023264387-A1 · Aug 24, 2023 · US
US-11346544-B2 · May 31, 2022 · US
US-2022120434-A1 · Apr 21, 2022 · US
US-2021063012-A1 · Mar 4, 2021 · US
US-10883713-B2 · Jan 5, 2021 · US
US-2018209638-A1 · Jul 26, 2018 · US
US-9500205-B2 · Nov 22, 2016 · US
US-9453432-B2 · Sep 27, 2016 · US
US-9404395-B2 · Aug 2, 2016 · US
US-2015096754-A1 · Apr 9, 2015 · US