Method of refurbishing an energy conversion facility and refurbished energy conversion facility
US-12497940-B2 · Dec 16, 2025 · US
for diminishing cavitation or vibration, e.g. balancing
for diminishing cavitation or vibration, e.g. balancing · 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 | F03B11/04 |
| Official title | for diminishing cavitation or vibration, e.g. balancing |
| Display label | for diminishing cavitation or vibration, e.g. balancing |
| Total patents | 32 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 4 |
| 2018 | 2 |
| 2019 | 4 |
| 2020 | 2 |
| 2021 | 4 |
| 2022 | 3 |
| 2023 | 3 |
| 2024 | 4 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hydrofoil cavitating flow control structure
US-12485999-B2 · Dec 2, 2025 · US
Method of refurbishing an energy conversion facility and refurbished energy conversion facility
US-2025012248-A1 · Jan 9, 2025 · US
Method and device for determining suction height of variable speed units
US-12104566-B2 · Oct 1, 2024 · US
Customized method for strengthening the water droplet erosion resistance on steam turbine blade surfaces
US-2024256730-A1 · Aug 1, 2024 · US
Francis-type hydraulic machine
US-12037975-B2 · Jul 16, 2024 · US
Method and device for determining suction height of variable speed units
US-2024003327-A1 · Jan 4, 2024 · US
Francis-type hydraulic machine
US-2023358201-A1 · Nov 9, 2023 · US
Hydroturbine runner crown with balancing slots
US-11719214-B2 · Aug 8, 2023 · US
Hydrofoil cavitating flow control structure
US-2023084338-A1 · Mar 16, 2023 · US
Hydroelectric power generation system
US-11313343-B2 · Apr 26, 2022 · US
Hydroturbine runner blade local extension to avoid cavitation erosion
US-2022120253-A1 · Apr 21, 2022 · US
Stabilization of hydraulic machines with S-zone characteristics
US-11239778-B2 · Feb 1, 2022 · US
Hydroturbine Runner Crown with Balancing Slots
US-2021388808-A1 · Dec 16, 2021 · US
Hydraulic turbine
US-11073124-B2 · Jul 27, 2021 · US
Double-regulated turbine, installation for converting hydraulic energy and process for the rehabilitation of a double-regulated turbine
US-11022087-B2 · Jun 1, 2021 · US
Turbine unit for hydraulic installation
US-10961978-B2 · Mar 30, 2021 · US
Hydraulic machine comprising a radial flow runner
US-2020362811-A1 · Nov 19, 2020 · US
Hydraulic Turbine
US-2020149505-A1 · May 14, 2020 · US
Stabilization of Hydraulic Machines with S-Zone Characteristics
US-2019372495-A1 · Dec 5, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F03B11/04?
- CPC F03B11/04 is the Cooperative Patent Classification code for “for diminishing cavitation or vibration, e.g. balancing.”
- How many patents are filed under CPC F03B11/04 (for diminishing cavitation or vibration, e.g. balancing)?
- Our database includes 32 publications tagged with this CPC code.
- Is patent activity under CPC F03B11/04 growing?
- Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).