Leaf spring device
US-2022412420-A1 · Dec 29, 2022 · US
composed only of leaf springs
composed only of 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 | F16F3/023 |
| Official title | {composed only of leaf springs} |
| Display label | composed only of leaf springs |
| Total patents | 89 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 5 |
| 2017 | 8 |
| 2018 | 9 |
| 2019 | 9 |
| 2020 | 13 |
| 2021 | 4 |
| 2022 | 8 |
| 2023 | 12 |
| 2024 | 10 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Compact, lightweight and reusable local energy absorbers
US-11400885-B2 · Aug 2, 2022 · US
Hinge device
US-11359760-B2 · Jun 14, 2022 · US
Antivibration kit-of-parts and parts therefor, airfoil structure and aircraft provided therewith
US-2022089272-A1 · Mar 24, 2022 · US
Blade flexure assembly with replaceable elements
US-11143231-B2 · Oct 12, 2021 · US
Measuring apparatus
US-11041792-B2 · Jun 22, 2021 · US
Vibration damping structure for heat-transfer tube bundle
US-10935232-B2 · Mar 2, 2021 · US
Blade Flexure Assembly with Replaceable Elements
US-2021025443-A1 · Jan 28, 2021 · US
Disc spring assembly
US-10865846-B2 · Dec 15, 2020 · US
Drivetrain assembly for a personal care device
US-10813733-B2 · Oct 27, 2020 · US
Deformable body and method for the production thereof
US-2020325951-A1 · Oct 15, 2020 · US
Compact, Lightweight And Reusable Local Energy Absorbers
US-2020307502-A1 · Oct 1, 2020 · US
Operating unit mount with improved leaf spring element attachment
US-10768703-B2 · Sep 8, 2020 · US
Energy absorber for aircraft seat
US-2020262563-A1 · Aug 20, 2020 · US
Hinge device
US-2020191323-A1 · Jun 18, 2020 · US
Barrel spring
US-10677307-B2 · Jun 9, 2020 · US
Planar spring and rotating series elastic actuator
US-2020158201-A1 · May 21, 2020 · US
Flexure isolator and method of compliant isolation
US-2020123978-A1 · Apr 23, 2020 · US
Trampoline enclosure connector
US-10610717-B2 · Apr 7, 2020 · US
Leaf spring device and method for manufacturing leaf spring device
US-10549594-B2 · Feb 4, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16F3/023?
- CPC F16F3/023 is the Cooperative Patent Classification code for “composed only of leaf springs.”
- How many patents are filed under CPC F16F3/023 (composed only of leaf springs)?
- Our database includes 89 publications tagged with this CPC code.
- Is patent activity under CPC F16F3/023 growing?
- Publication counts under this code: 10 in 2024 vs 2 in 2025 (latest complete years).