Rotary assembly
US-2025136285-A1 · May 1, 2025 · US
the working-fluid being divided into several separate flows (F01D3/02 takes precedence); several separate fluid flows being united in a single flow; the machine or engine having provision for two or more different possible fluid flow paths
the working-fluid being divided into several separate flows (F01D3/02 takes precedence); several separate fluid flows being united in a single flow; the machine or engine having provision for two or more different possible fluid flow paths · 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 | F01D1/023 |
| Official title | {the working-fluid being divided into several separate flows (F01D3/02 takes precedence); several separate fluid flows being united in a single flow; the machine or engine having provision for two or more different possible fluid flow paths} |
| Display label | the working-fluid being divided into several separate flows (F01D3/02 takes precedence); several separate fluid flows being united in a single flow; the machine or engine having provision for two or more different possible fluid flow paths |
| Total patents | 57 |
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 | 7 |
| 2016 | 3 |
| 2017 | 10 |
| 2018 | 10 |
| 2019 | 7 |
| 2020 | 8 |
| 2021 | 4 |
| 2022 | 3 |
| 2024 | 3 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Turbine and turbocharger
US-12221890-B2 · Feb 11, 2025 · US
Turbine and turbocharger
US-2024200456-A1 · Jun 20, 2024 · US
Flow deflector for aperture in gas turbine engine flowpath wall
US-2024026794-A1 · Jan 25, 2024 · US
Flow deflector for aperture in gas turbine engine flowpath wall
US-11873737-B1 · Jan 16, 2024 · US
Mixing ram and bleed air in a dual entry turbine system
US-11511867-B2 · Nov 29, 2022 · US
Flow channel for a turbomachine
US-11396812-B2 · Jul 26, 2022 · US
Gas turbine engine and an airflow control system
US-11236639-B2 · Feb 1, 2022 · US
Steam turbine system
US-11162363-B2 · Nov 2, 2021 · US
Fluidic flow control device
US-2021301684-A1 · Sep 30, 2021 · US
Mixing ram and bleed air in a dual entry turbine system
US-11047237-B2 · Jun 29, 2021 · US
Systems and methods for expanding flow in a waste heat recovery system
US-10900383-B2 · Jan 26, 2021 · US
Inner casing for steam turbine engine
US-10844748-B2 · Nov 24, 2020 · US
Steam turbine and methods of assembling the same
US-10774667-B2 · Sep 15, 2020 · US
Energy flow of an advanced environmental control system
US-10773807-B2 · Sep 15, 2020 · US
Geared low fan pressure ratio fan exit guide vane stagger angle
US-10738627-B2 · Aug 11, 2020 · US
Steam turbine system
US-2020240271-A1 · Jul 30, 2020 · US
Turbine engine with guide vanes forward of its fan blades
US-10711631-B2 · Jul 14, 2020 · US
Aircraft comprising a turbine engine incorporated into the rear fuselage comprising a system for blocking the fans
US-10661910-B2 · May 26, 2020 · US
Systems and methods for expanding flow in a waste heat recovery system
US-2020088068-A1 · Mar 19, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01D1/023?
- CPC F01D1/023 is the Cooperative Patent Classification code for “the working-fluid being divided into several separate flows (F01D3/02 takes precedence); several separate fluid flows being united in a single flow; the machine or engine having provision for two or more different possible fluid flow paths.”
- How many patents are filed under CPC F01D1/023 (the working-fluid being divided into several separate flows (F01D3/02 takes precedence); several separate fluid flows being united in a single flow; the machine or engine having provision for two or more different possible fluid flow paths)?
- Our database includes 57 publications tagged with this CPC code.
- Is patent activity under CPC F01D1/023 growing?
- Publication counts under this code: 3 in 2024 vs 2 in 2025 (latest complete years).