Francis-type turbine runner and Francis-type turbine
US-11359596-B2 · Jun 14, 2022 · US
Mechanical Engineering
Mechanical Engineering · 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 | F03B3/02 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 74 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 8 |
| 2017 | 6 |
| 2018 | 8 |
| 2019 | 11 |
| 2020 | 7 |
| 2021 | 14 |
| 2022 | 3 |
| 2023 | 8 |
| 2024 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Startup method of francis turbine and francis turbine
US-2021396204-A1 · Dec 23, 2021 · US
Startup method of francis turbine and francis turbine
US-2021396205-A1 · Dec 23, 2021 · US
Hydroturbine Runner Crown with Balancing Slots
US-2021388808-A1 · Dec 16, 2021 · US
Francis-type turbine runner and francis-type turbine
US-2021277862-A1 · Sep 9, 2021 · US
Hydraulic turbine
US-11073124-B2 · Jul 27, 2021 · US
Francis-type turbine runner and francis-type turbine
US-2021207569-A1 · Jul 8, 2021 · US
Reverse osmosis system
US-11045766-B2 · Jun 29, 2021 · US
Francis turbine and method of operating same
US-11028815-B2 · Jun 8, 2021 · US
Reverse osmosis system
US-2021162345-A1 · Jun 3, 2021 · US
Hydraulic machine comprising a radial flow runner
US-10954912-B2 · Mar 23, 2021 · US
Improvements Relating to Hydroturbine Manufacture
US-2021033060-A1 · Feb 4, 2021 · US
Apparatus and method for modifying a geometry of a turbine part
US-10907609-B2 · Feb 2, 2021 · US
Hydraulic installation and method for operating the same
US-10907608-B2 · Feb 2, 2021 · US
Guide vane apparatus for water turbine and water turbine equipped with the same
US-10900462-B2 · Jan 26, 2021 · US
Hydraulic machine comprising a radial flow runner
US-2020362811-A1 · Nov 19, 2020 · US
Fluid apparatus
US-2020313585-A1 · Oct 1, 2020 · US
Apparatus and method for modifying a geometry of a turbine part
US-2020300210-A1 · Sep 24, 2020 · US
Apparatus and method for modifying a geometry of a turbine part
US-10704527-B2 · Jul 7, 2020 · US
Hydraulic Turbine
US-2020149505-A1 · May 14, 2020 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F03B3/02?
- CPC F03B3/02 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F03B3/02 (Mechanical Engineering)?
- Our database includes 74 publications tagged with this CPC code.
- Is patent activity under CPC F03B3/02 growing?
- Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).