Hydroturbine manufacture
US-12078141-B2 · Sep 3, 2024 · US
Blades, their form or construction
Blades, their form or construction · 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 | F03B3/121 |
| Official title | {Blades, their form or construction} |
| Display label | Blades, their form or construction |
| Total patents | 69 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 7 |
| 2017 | 3 |
| 2018 | 7 |
| 2019 | 5 |
| 2020 | 7 |
| 2021 | 7 |
| 2022 | 9 |
| 2023 | 6 |
| 2024 | 3 |
| 2025 | 6 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Conical turbine hydraulic machine
US-2024044312-A1 · Feb 8, 2024 · US
Hydroturbine manufacture
US-11808245-B2 · Nov 7, 2023 · US
Hydroturbine manufacture
US-2023332570-A1 · Oct 19, 2023 · US
Pre-formed plug with inter-blade profiles for hydraulic turbines
US-11692445-B2 · Jul 4, 2023 · US
Methods of customizing, manufacturing, and repairing a rotor blade using additive manufacturing processes and a rotor blade incorporating the same
US-11629600-B2 · Apr 18, 2023 · US
Pre-formed plug with inter-blade profiles for hydraulic turbines
US-2023030140-A1 · Feb 2, 2023 · US
Francis-type turbine runner and Francis-type turbine
US-11566595-B2 · Jan 31, 2023 · US
Wicket gate for a hydraulic turbine or pump
US-11530678-B2 · Dec 20, 2022 · US
Turbines and associated components, systems and methods
US-2022341328-A1 · Oct 27, 2022 · US
Rotary screw compressor
US-2022316480-A1 · Oct 6, 2022 · US
Pre-formed plug with inter-blade profiles for hydraulic turbines
US-11454122-B2 · Sep 27, 2022 · US
Turbines and associated components, systems and methods
US-11371355-B2 · Jun 28, 2022 · US
Francis-type turbine runner and Francis-type turbine
US-11359596-B2 · Jun 14, 2022 · US
Rotary screw compressor rotor having work extraction mechanism
US-11359632-B2 · Jun 14, 2022 · US
Runner for a hydraulic turbine or pump and method of manufacturing
US-11359595-B2 · Jun 14, 2022 · US
Horizontal-axis ocean current power generation device for underwater vehicle
US-11215160-B2 · Jan 4, 2022 · US
Turbines and associated components, systems and methods
US-2021363887-A1 · Nov 25, 2021 · US
Francis-type turbine runner and francis-type turbine
US-2021277862-A1 · Sep 9, 2021 · US
Horizontal-axis ocean current power generation device for underwater vehicle
US-2021239086-A1 · Aug 5, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F03B3/121?
- CPC F03B3/121 is the Cooperative Patent Classification code for “Blades, their form or construction.”
- How many patents are filed under CPC F03B3/121 (Blades, their form or construction)?
- Our database includes 69 publications tagged with this CPC code.
- Is patent activity under CPC F03B3/121 growing?
- Publication counts under this code: 3 in 2024 vs 6 in 2025 (latest complete years).