Spring mechanism
US-2025354598-A1 · Nov 20, 2025 · US
Mechanical Engineering
Mechanical Engineering · 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 | F16F1/22 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 40 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 5 |
| 2017 | 2 |
| 2018 | 5 |
| 2019 | 9 |
| 2020 | 2 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Suspension for vehicle
US-12434521-B2 · Oct 7, 2025 · US
Adjustable blade load mechanism for cantilever beam wiper arm assembly
US-2025304015-A1 · Oct 2, 2025 · US
Suspension for vehicle
US-2025262902-A1 · Aug 21, 2025 · US
Leaf spring device
US-2024424848-A1 · Dec 26, 2024 · US
Device comprising a set of vibration absorbers and vehicle equipped with such a device
US-11885391-B2 · Jan 30, 2024 · US
Leaf spring with high resolution stiffness control
US-2023366442-A1 · Nov 16, 2023 · US
Variable stiffness damper system
US-11674397-B2 · Jun 13, 2023 · US
Flexure guidance system
US-11454992-B1 · Sep 27, 2022 · US
Variable stiffness damper system
US-2022154580-A1 · May 19, 2022 · US
Device comprising a set of vibration absorbers and vehicle equipped with such a device
US-2022074460-A1 · Mar 10, 2022 · US
Variable stiffness series elastic actuator
US-11192266-B2 · Dec 7, 2021 · US
Bi-directional non-linear spring
US-11015669-B2 · May 25, 2021 · US
Spring assembly for a vehicle suspension
US-11007835-B2 · May 18, 2021 · US
Longitudinal leaf spring device for suspension of a motor vehicle body
US-10792969-B2 · Oct 6, 2020 · US
Support assembly having variable stiffness member
US-10724400-B2 · Jul 28, 2020 · US
Bi-Directional Non-Linear Spring
US-2019323572-A1 · Oct 24, 2019 · US
Leaf spring device for a vehicle and method for producing such a leaf spring device
US-2019309814-A1 · Oct 10, 2019 · US
Methods to dynamically alter the stiffness of nonlinear structures
US-10422397-B1 · Sep 24, 2019 · US
Bi-directional non-linear spring
US-10337577-B2 · Jul 2, 2019 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16F1/22?
- CPC F16F1/22 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F16F1/22 (Mechanical Engineering)?
- Our database includes 40 publications tagged with this CPC code.
- Is patent activity under CPC F16F1/22 growing?
- Publication counts under this code: 2 in 2024 vs 4 in 2025 (latest complete years).