Hollow element manufacturing method and rotary machine manufacturing method
US-10837071-B2 · Nov 17, 2020 · 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 | F04D7/02 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 135 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 16 |
| 2017 | 10 |
| 2018 | 13 |
| 2019 | 12 |
| 2020 | 15 |
| 2021 | 14 |
| 2022 | 7 |
| 2023 | 13 |
| 2024 | 16 |
| 2025 | 13 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Centrifugal Pump
US-2020271127-A1 · Aug 27, 2020 · US
Adjustable rigid spacer coupling
US-2020149539-A1 · May 14, 2020 · US
Electronics cooling module
US-10645844-B2 · May 5, 2020 · US
Turbomachinery
US-2020063607-A1 · Feb 27, 2020 · US
Heat insulating vessel for low temperature liquefied gas pump
US-2020040881-A1 · Feb 6, 2020 · US
Integral pump pressure relief valve
US-10513343-B2 · Dec 24, 2019 · US
Systems and Methods for Managing Cuttings Using Eddy Pump and Tank
US-2019353165-A1 · Nov 21, 2019 · US
Volutes for engine mounted boost stages
US-10458431-B2 · Oct 29, 2019 · US
Electronics cooling module
US-2019320556-A1 · Oct 17, 2019 · US
Rocket fuel pump
US-2019301401-A1 · Oct 3, 2019 · US
Self-limiting regenerative pumping element start stage for high speed centrifugal engine fuel pump and associated method
US-2019277233-A1 · Sep 12, 2019 · US
Vertical pump and urea synthesis plant
US-2019211833-A1 · Jul 11, 2019 · US
Magnetically coupled pump assembly
US-10260507-B2 · Apr 16, 2019 · US
Pump for the conveyance of a fluid with varying viscosity
US-10215185-B2 · Feb 26, 2019 · US
Magnetic bearing for a turbomachine
US-2019048884-A1 · Feb 14, 2019 · US
Anti-gas lock electric submersible pump
US-2019048886-A1 · Feb 14, 2019 · US
Centrifugal pump, in particular for supplying power to rocket engines
US-10167874-B2 · Jan 1, 2019 · US
Compact liquid nitrogen pump
US-10125771-B2 · Nov 13, 2018 · US
Volutes for engine mounted boost stages
US-2018291921-A1 · Oct 11, 2018 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04D7/02?
- CPC F04D7/02 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F04D7/02 (Mechanical Engineering)?
- Our database includes 135 publications tagged with this CPC code.
- Is patent activity under CPC F04D7/02 growing?
- Publication counts under this code: 16 in 2024 vs 13 in 2025 (latest complete years).