Pump device and method for at least locally sealing the pump device
US-2021324843-A1 · Oct 21, 2021 · US
Rotary-piston machines or pumps with the working-chamber walls at least partly resiliently deformable (such pumps specially adapted for elastic fluids F04C18/00)
Rotary-piston machines or pumps with the working-chamber walls at least partly resiliently deformable (such pumps specially adapted for elastic fluids F04C18/00) · 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 | F04C5/00 |
| Official title | Rotary-piston machines or pumps with the working-chamber walls at least partly resiliently deformable (such pumps specially adapted for elastic fluids F04C18/00) |
| Display label | Rotary-piston machines or pumps with the working-chamber walls at least partly resiliently deformable (such pumps specially adapted for elastic fluids F04C18/00) |
| Total patents | 81 |
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 | 3 |
| 2016 | 6 |
| 2017 | 12 |
| 2018 | 14 |
| 2019 | 13 |
| 2020 | 8 |
| 2021 | 7 |
| 2022 | 5 |
| 2023 | 5 |
| 2024 | 6 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Curved flexible impeller
US-11053937-B2 · Jul 6, 2021 · US
Oil pump
US-2021033091-A1 · Feb 4, 2021 · US
Method for operating a device for the dosed supply of a liquid
US-10883490-B2 · Jan 5, 2021 · US
Flexible impeller pumps and disposable fluid flow circuits incorporating such pumps
US-10865805-B2 · Dec 15, 2020 · US
Rotary pump with deformable pump ring
US-10677059-B2 · Jun 9, 2020 · US
Pump device
US-2020132065-A1 · Apr 30, 2020 · US
Pump device
US-10584588-B2 · Mar 10, 2020 · US
Pump mechanism and beverage dispenser
US-2020062573-A1 · Feb 27, 2020 · US
Pump device with deformable pump ring
US-10570738-B2 · Feb 25, 2020 · US
Pump device with pump ring having curved contact portion
US-10533419-B2 · Jan 14, 2020 · US
Pump device with deformable pump ring
US-10533418-B2 · Jan 14, 2020 · US
Pump motor for high temperature fluids
US-10473101-B2 · Nov 12, 2019 · US
Pump for conveying a fluid, in particular for conveying an exhaust gas cleaning additive
US-10451059-B2 · Oct 22, 2019 · US
Pump for conveying a liquid
US-10428815-B2 · Oct 1, 2019 · US
Pump for pumping a liquid along at least one delivery path delimited by a deformable element braced in an axial direction by a stress anchor projecting through a pump rotation shaft
US-10393102-B2 · Aug 27, 2019 · US
Method for operating a pump
US-10385849-B2 · Aug 20, 2019 · US
Impeller
US-2019242379-A1 · Aug 8, 2019 · US
Peristaltic pump having adjustable roller guiding parts
US-10359037-B2 · Jul 23, 2019 · US
Pump motor for high temperature fluids
US-2019219054-A1 · Jul 18, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04C5/00?
- CPC F04C5/00 is the Cooperative Patent Classification code for “Rotary-piston machines or pumps with the working-chamber walls at least partly resiliently deformable (such pumps specially adapted for elastic fluids F04C18/00).”
- How many patents are filed under CPC F04C5/00 (Rotary-piston machines or pumps with the working-chamber walls at least partly resiliently deformable (such pumps specially adapted for elastic fluids F04C18/00))?
- Our database includes 81 publications tagged with this CPC code.
- Is patent activity under CPC F04C5/00 growing?
- Publication counts under this code: 6 in 2024 vs 2 in 2025 (latest complete years).