Vibration isolation system with thermal growth compensation
US-2019383351-A1 · Dec 19, 2019 · US
pre-stressed
pre-stressed · 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 | F16F2228/08 |
| Official title | pre-stressed |
| Display label | pre-stressed |
| Total patents | 144 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 11 |
| 2016 | 5 |
| 2017 | 11 |
| 2018 | 13 |
| 2019 | 20 |
| 2020 | 21 |
| 2021 | 14 |
| 2022 | 12 |
| 2023 | 12 |
| 2024 | 13 |
| 2025 | 7 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Vehicle suspension bushing assembly and method of assembling the same
US-10508701-B2 · Dec 17, 2019 · US
Precision dynamic leveling mechanism with long motion capability
US-2019360633-A1 · Nov 28, 2019 · US
Damping Valve Arrangement
US-2019331193-A1 · Oct 31, 2019 · US
Base isolation apparatus, lifting apparatus, and base isolation unit
US-2019315595-A1 · Oct 17, 2019 · US
Base isolation unit and base isolation apparatus
US-10443677-B2 · Oct 15, 2019 · US
Hydraulic body mount with compressible bumper
US-10442469-B2 · Oct 15, 2019 · US
Frequency-dependent damping valve arrangement
US-10443673-B2 · Oct 15, 2019 · US
Damper unit for an elevator
US-10427911-B2 · Oct 1, 2019 · US
Methods and apparatus for selective spring pre-load adjustment
US-10414236-B2 · Sep 17, 2019 · US
Vehicle skeleton support apparatus
US-2019170210-A1 · Jun 6, 2019 · US
Dual mode tuning type dynamic damper and drive shaft device and vehicle thereby
US-10302171-B2 · May 28, 2019 · US
Vibration damping device
US-2019154110-A1 · May 23, 2019 · US
Stabilizer bushing
US-2019135069-A1 · May 9, 2019 · US
Non-limit multi-function viscoelastic support structure group
US-2019136941-A1 · May 9, 2019 · US
Vibration-damping device and attachment structure for vibration-damping device
US-10274037-B2 · Apr 30, 2019 · US
Shock absorber
US-2019111994-A1 · Apr 18, 2019 · US
Hydraulic Body Mount With Compressible Bumper
US-2019039655-A1 · Feb 7, 2019 · US
Passive variable negative stiffness device and methods of use thereof
US-2019040931-A1 · Feb 7, 2019 · US
Vehicle seat
US-2019039490-A1 · Feb 7, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16F2228/08?
- CPC F16F2228/08 is the Cooperative Patent Classification code for “pre-stressed.”
- How many patents are filed under CPC F16F2228/08 (pre-stressed)?
- Our database includes 144 publications tagged with this CPC code.
- Is patent activity under CPC F16F2228/08 growing?
- Publication counts under this code: 13 in 2024 vs 7 in 2025 (latest complete years).