Hydraulic lifting column and medical device
US-2024351834-A1 · Oct 24, 2024 · US
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having shock absorbers mounted outside the actuator housing
having shock absorbers mounted outside the actuator housing · 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 | F15B15/228 |
| Official title | {having shock absorbers mounted outside the actuator housing} |
| Display label | having shock absorbers mounted outside the actuator housing |
| Total patents | 20 |
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 | 2 |
| 2016 | 4 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 2 |
| 2021 | 4 |
| 2022 | 1 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hydraulic actuator
US-2022213906-A1 · Jul 7, 2022 · US
Rod assembly and fluid pressure device
US-11143214-B2 · Oct 12, 2021 · US
Hydraulic system for an aircraft
US-11072418-B2 · Jul 27, 2021 · US
Actuator for an automated or automatic transmission, and method for controlling the actuator
US-11060538-B2 · Jul 13, 2021 · US
Actuator for an automated or automatic transmission, and method for controlling the actuator
US-2021108656-A1 · Apr 15, 2021 · US
Linear drive device
US-10865816-B2 · Dec 15, 2020 · US
Rod assembly and fluid pressure device
US-2020072254-A1 · Mar 5, 2020 · US
Linear drive device
US-2019360507-A1 · Nov 28, 2019 · US
Accumulator with secondary gas chamber
US-10480552-B2 · Nov 19, 2019 · US
Hydraulic System For An Aircraft
US-2019315456-A1 · Oct 17, 2019 · US
Accumulator with secondary gas chamber
US-2018216639-A1 · Aug 2, 2018 · US
Linear actuator
US-9856957-B2 · Jan 2, 2018 · US
Bi-directional shock absorbing device
US-9677639-B2 · Jun 13, 2017 · US
Fluid pressure cylinder
US-9484242-B2 · Nov 1, 2016 · US
Energy efficient fluid powered linear actuator with variable area
US-9441644-B2 · Sep 13, 2016 · US
Linear Actuator
US-2016153477-A1 · Jun 2, 2016 · US
Energy Efficient Fluid Powered Linear Actuator With Variable Area
US-2016061232-A1 · Mar 3, 2016 · US
Air cushion mechanism of pneumatic cylinder
US-9175699-B2 · Nov 3, 2015 · US
Bi-directional shock absorbing device
US-2015152934-A1 · Jun 4, 2015 · US