Composite material capable of measuring bending deformation, spring including the same, and manufacturing method thereof
US-12480556-B2 · Nov 25, 2025 · US
Leaf springs
Leaf springs · 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 | F16F1/368 |
| Official title | Leaf springs |
| Display label | Leaf springs |
| Total patents | 47 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 4 |
| 2017 | 2 |
| 2018 | 4 |
| 2019 | 9 |
| 2020 | 4 |
| 2021 | 1 |
| 2022 | 8 |
| 2023 | 3 |
| 2024 | 4 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for manufacturing a blade for a suspension
US-2025236061-A1 · Jul 24, 2025 · US
Bias device for biasing a gripping device by biasing working arms apart
US-12257690-B2 · Mar 25, 2025 · US
Process for manufacturing a leaf spring and insert for leaf spring
US-12163565-B2 · Dec 10, 2024 · US
Hair removal device
US-2024227219-A1 · Jul 11, 2024 · US
Vehicle suspension spring device and vehicle suspension system having the same
US-11890906-B2 · Feb 6, 2024 · US
Device comprising a set of vibration absorbers and vehicle equipped with such a device
US-11885391-B2 · Jan 30, 2024 · US
Suspension device
US-11820185-B2 · Nov 21, 2023 · US
Curved reinforced resilient support for a non-pneumatic tire
US-11745542-B2 · Sep 5, 2023 · US
Vehicle suspension spring device and vehicle suspension system having the same
US-2023166573-A1 · Jun 1, 2023 · US
Composite material capable of measuring bending deformation, spring including the same, and manufacturing method thereof
US-2022333659-A1 · Oct 20, 2022 · US
Composite material spring for suspension device of vehicle, and method for controlling driving of vehicle using the same
US-11453263-B2 · Sep 27, 2022 · US
Variable stiffness mechanisms
US-11446164-B1 · Sep 20, 2022 · US
Bias device for biasing a gripping device by biasing working arms apart
US-11383373-B2 · Jul 12, 2022 · US
Suspension device
US-2022212512-A1 · Jul 7, 2022 · US
Composite Material Spring for Suspension Device of Vehicle, and Method for Controlling Driving of Vehicle Using the Same
US-2022176770-A1 · Jun 9, 2022 · US
Device comprising a set of vibration absorbers and vehicle equipped with such a device
US-2022074460-A1 · Mar 10, 2022 · US
Process for manufacturing a leaf spring and insert for leaf spring
US-2022065319-A1 · Mar 3, 2022 · US
Spring assembly for a vehicle suspension
US-11007835-B2 · May 18, 2021 · US
Curved reinforced resilient support for a non-pneumatic tire
US-2020376891-A1 · Dec 3, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16F1/368?
- CPC F16F1/368 is the Cooperative Patent Classification code for “Leaf springs.”
- How many patents are filed under CPC F16F1/368 (Leaf springs)?
- Our database includes 47 publications tagged with this CPC code.
- Is patent activity under CPC F16F1/368 growing?
- Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).