Coil spring, suspension device, and coil spring manufacturing method
US-2025230850-A1 · Jul 17, 2025 · US
characterised by the cross-section of the wire
characterised by the cross-section of the wire · 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 | F16F1/042 |
| Official title | {characterised by the cross-section of the wire} |
| Display label | characterised by the cross-section of the wire |
| Total patents | 51 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 2 |
| 2017 | 4 |
| 2018 | 4 |
| 2019 | 7 |
| 2020 | 3 |
| 2021 | 4 |
| 2022 | 8 |
| 2023 | 8 |
| 2024 | 4 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Infinite-rotation infinite-stiffness variable stiffness actuator (irisvsa) with application for compliant supernumerary robotic limb
US-2025010499-A1 · Jan 9, 2025 · US
Infinite-rotation infinite-stiffness variable stiffness actuator (IRISVSA) with application for compliant supernumerary robotic limb
US-12128553-B2 · Oct 29, 2024 · US
Coil spring, suspension device, and method for producing coil spring
US-2024229884-A9 · Jul 11, 2024 · US
Coil spring, suspension device, and method for producing coil spring
US-2024133440-A1 · Apr 25, 2024 · US
Infinite-rotation infinite-stiffness variable stiffness actuator (irisvsa) with application for compliant supernumerary robotic limb
US-2024123636-A1 · Apr 18, 2024 · US
Squeeze mode giant electrorheological fluid damper
US-11808317-B2 · Nov 7, 2023 · US
Coil spring
US-2023304556-A1 · Sep 28, 2023 · US
Helical compression spring with non-round crosssection for an actuator for opening and closing a door or a tailgate of a car
US-2023295971-A1 · Sep 21, 2023 · US
Method for installing a wrap spring
US-11754129-B2 · Sep 12, 2023 · US
Furniture fitting
US-2023250684-A1 · Aug 10, 2023 · US
Method of manufacturing a hollow spring member
US-11701943-B2 · Jul 18, 2023 · US
Hollow coil spring and suspension device for vehicle
US-11685211-B2 · Jun 27, 2023 · US
Squeeze mode giant electrorheological fluid damper
US-2023062689-A1 · Mar 2, 2023 · US
Coil spring
US-11499600-B2 · Nov 15, 2022 · US
Wrap spring and wrap spring assembly
US-11384808-B2 · Jul 12, 2022 · US
Method of manufacturing a hollow spring member
US-2022203800-A1 · Jun 30, 2022 · US
Coil spring assembly
US-11339844-B2 · May 24, 2022 · US
Method for installing a wrap spring
US-2022145947-A1 · May 12, 2022 · US
Hollow spring member and manufacturing method therefor
US-11285776-B2 · Mar 29, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16F1/042?
- CPC F16F1/042 is the Cooperative Patent Classification code for “characterised by the cross-section of the wire.”
- How many patents are filed under CPC F16F1/042 (characterised by the cross-section of the wire)?
- Our database includes 51 publications tagged with this CPC code.
- Is patent activity under CPC F16F1/042 growing?
- Publication counts under this code: 4 in 2024 vs 2 in 2025 (latest complete years).