Fluid plate assembly
US-12237754-B2 · Feb 25, 2025 · US
double acting plate-like flexible pumping member
double acting plate-like flexible pumping member · 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 | F04B45/041 |
| Official title | {double acting plate-like flexible pumping member} |
| Display label | double acting plate-like flexible pumping member |
| Total patents | 29 |
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 | 1 |
| 2017 | 7 |
| 2018 | 4 |
| 2019 | 4 |
| 2020 | 5 |
| 2021 | 2 |
| 2023 | 2 |
| 2024 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Tunnel boring machine having a device for detecting a content of critical gas
US-12158071-B2 · Dec 3, 2024 · US
Piezoelectric pump with annular valve arrangement
US-11867167-B2 · Jan 9, 2024 · US
Piezoelectric pump with annular valve arrangement
US-11867166-B2 · Jan 9, 2024 · US
Fluid plate assembly
US-2023198339-A1 · Jun 22, 2023 · US
Tunnel boring machine having a device for detecting a content of critical gas
US-2023140625-A1 · May 4, 2023 · US
Piezoelectric pump
US-2021332812-A1 · Oct 28, 2021 · US
Piezoelectric pump
US-2021324844-A1 · Oct 21, 2021 · US
Fluid control device, decompression device, and compression device
US-10794378-B2 · Oct 6, 2020 · US
Miniature vacuum/pressure diaphragm pumps with noise mitigation boot
US-10794375-B2 · Oct 6, 2020 · US
Micropump with electrostatic actuation
US-10767641-B2 · Sep 8, 2020 · US
Blower
US-10738773-B2 · Aug 11, 2020 · US
Blower
US-10626861-B2 · Apr 21, 2020 · US
Multi-pulse jet generator and air conditioner having same
US-10502440-B2 · Dec 10, 2019 · US
High-pressure positive displacement plunger pump
US-2019211817-A1 · Jul 11, 2019 · US
Pump assembly
US-2019184776-A1 · Jun 20, 2019 · US
Drive system for a positive displacement pump
US-2019093651-A1 · Mar 28, 2019 · US
Mechanical drive system for a pulseless positive displacement pump
US-10161393-B2 · Dec 25, 2018 · US
Foam dispensing systems, pumps and refill units having high air to liquid ratios
US-10080467-B2 · Sep 25, 2018 · US
Miniature gas transportation device
US-2018238320-A1 · Aug 23, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04B45/041?
- CPC F04B45/041 is the Cooperative Patent Classification code for “double acting plate-like flexible pumping member.”
- How many patents are filed under CPC F04B45/041 (double acting plate-like flexible pumping member)?
- Our database includes 29 publications tagged with this CPC code.
- Is patent activity under CPC F04B45/041 growing?
- Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).