Bearing spring/damper system of a vehicle wheel
US-11192419-B2 · Dec 7, 2021 · US
comprising a hollow piston rod
comprising a hollow piston rod · 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 | F16F9/182 |
| Official title | {comprising a hollow piston rod} |
| Display label | comprising a hollow piston rod |
| Total patents | 124 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 5 |
| 2017 | 8 |
| 2018 | 11 |
| 2019 | 11 |
| 2020 | 11 |
| 2021 | 17 |
| 2022 | 13 |
| 2023 | 12 |
| 2024 | 17 |
| 2025 | 8 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Shock absorber
US-11149815-B2 · Oct 19, 2021 · US
Multi-actor damping systems and methods
US-2021215219-A1 · Jul 15, 2021 · US
Hydraulic shock absorber
US-10919595-B2 · Feb 16, 2021 · US
Method and apparatus for an adjustable damper
US-2021039467-A1 · Feb 11, 2021 · US
Method and apparatus for an adjustable damper
US-10821795-B2 · Nov 3, 2020 · US
Method and apparatus for an adjustable damper
US-10814689-B2 · Oct 27, 2020 · US
Method and apparatus for an adjustable damper
US-10807433-B2 · Oct 20, 2020 · US
Method and apparatus for an adjustable damper
US-10800220-B2 · Oct 13, 2020 · US
Hydraulic damper with a compression stop assembly
US-10752076-B2 · Aug 25, 2020 · US
Shock absorber
US-2020191233-A1 · Jun 18, 2020 · US
Damper with valve preload limiter
US-10663027-B2 · May 26, 2020 · US
Shock absorber and method of manufacturing the same
US-2020149608-A1 · May 14, 2020 · US
Bearing Spring/Damper System of a Vehicle Wheel
US-2020114720-A1 · Apr 16, 2020 · US
Compensator device
US-10619693-B2 · Apr 14, 2020 · US
Damping force adjustable shock absorber
US-2020032871-A1 · Jan 30, 2020 · US
Damper and damper manufacturing method
US-10518599-B2 · Dec 31, 2019 · US
Hydraulic damper with a compression stop assembly
US-2019375263-A1 · Dec 12, 2019 · US
Damper with valve preload limiter
US-2019293146-A1 · Sep 26, 2019 · US
Method and apparatus for an adjustable damper
US-2019283519-A1 · Sep 19, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16F9/182?
- CPC F16F9/182 is the Cooperative Patent Classification code for “comprising a hollow piston rod.”
- How many patents are filed under CPC F16F9/182 (comprising a hollow piston rod)?
- Our database includes 124 publications tagged with this CPC code.
- Is patent activity under CPC F16F9/182 growing?
- Publication counts under this code: 17 in 2024 vs 8 in 2025 (latest complete years).