Cushioning stopper
US-2025129832-A1 · Apr 24, 2025 · US
with external elements passively influencing spring stiffness, e.g. rings or hoops
with external elements passively influencing spring stiffness, e.g. rings or hoops · 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 | F16F1/3713 |
| Official title | {with external elements passively influencing spring stiffness, e.g. rings or hoops} |
| Display label | with external elements passively influencing spring stiffness, e.g. rings or hoops |
| Total patents | 39 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 4 |
| 2019 | 7 |
| 2020 | 5 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 1 |
| 2024 | 4 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Dual rate jounce bumper and a vehicle comprising the same
US-12281682-B2 · Apr 22, 2025 · US
Transport mechanism of server rack and pallet structure
US-12116164-B2 · Oct 15, 2024 · US
Damping stopper
US-11988262-B2 · May 21, 2024 · US
Transport mechanism of server rack and pallet structure
US-2024116673-A1 · Apr 11, 2024 · US
Impact absorber assembly
US-11898687-B2 · Feb 13, 2024 · US
Damping Stopper
US-2023228314-A1 · Jul 20, 2023 · US
Dual rate jounce bumper and a vehicle comprising the same
US-2022364622-A1 · Nov 17, 2022 · US
Buffer stopper
US-2022243780-A1 · Aug 4, 2022 · US
Impact absorber assembly
US-2022049811-A1 · Feb 17, 2022 · US
Buffer stopper
US-11209064-B2 · Dec 28, 2021 · US
Externally-damped electromechanical valve assemblies
US-11162553-B2 · Nov 2, 2021 · US
Spring element for a vehicle shock absorber, and vehicle shock absorber and vehicle having same
US-10920843-B2 · Feb 16, 2021 · US
Damping stopper
US-2020370618-A1 · Nov 26, 2020 · US
Externally-damped electromechanical valve assemblies
US-2020256416-A1 · Aug 13, 2020 · US
Laminated bearing assembly with differing shim thicknesses
US-10738852-B1 · Aug 11, 2020 · US
Jounce bumper
US-10731722-B2 · Aug 4, 2020 · US
Ball Screw Drive With Variable Spring Stiffness
US-2020200245-A1 · Jun 25, 2020 · US
Antivibration device
US-10421346-B2 · Sep 24, 2019 · US
Antivibration device
US-10414261-B2 · Sep 17, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16F1/3713?
- CPC F16F1/3713 is the Cooperative Patent Classification code for “with external elements passively influencing spring stiffness, e.g. rings or hoops.”
- How many patents are filed under CPC F16F1/3713 (with external elements passively influencing spring stiffness, e.g. rings or hoops)?
- Our database includes 39 publications tagged with this CPC code.
- Is patent activity under CPC F16F1/3713 growing?
- Publication counts under this code: 4 in 2024 vs 2 in 2025 (latest complete years).