Motor and hydraulic pump device including the motor
US-12066022-B2 · Aug 20, 2024 · US
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having plural pumping chambers
having plural pumping chambers · 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 | F04B9/129 |
| Official title | having plural pumping chambers |
| Display label | having plural pumping chambers |
| Total patents | 14 |
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 |
| 2016 | 3 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Pressure booster
US-11661959-B2 · May 30, 2023 · US
Motor and hydraulic pump device including the motor
US-2022325705-A1 · Oct 13, 2022 · US
Pressure booster
US-2021301838-A1 · Sep 30, 2021 · US
Plural component proportioner comprising a first pump and a second pump simultaneously driven by a motor connected to the pumps by a yoke assembly comprising a shoe, a tie plate including a slot, and a tie rod
US-10670002-B2 · Jun 2, 2020 · US
Rotary compressor
US-2020056612-A1 · Feb 20, 2020 · US
Peristaltic pump and pumping method, in particular for use as implant
US-10549021-B2 · Feb 4, 2020 · US
Motor pump
US-2019360474-A1 · Nov 28, 2019 · US
Vacuum packaging and sealing appliance with double seal
US-10351279-B2 · Jul 16, 2019 · US
Plural component proportioner
US-2018135608-A1 · May 17, 2018 · US
Vacuum Packaging and Sealing Appliance with Double Seal
US-2016325864-A1 · Nov 10, 2016 · US
Peristaltic pump and pumping method, in particular for use as implant
US-2016250401-A1 · Sep 1, 2016 · US
Vacuum packaging and sealing appliance with double seal
US-9352864-B2 · May 31, 2016 · US
Draining device
US-2015078929-A1 · Mar 19, 2015 · US