Vibration damper having a gas-filled enveloping body
US-2023392664-A1 · Dec 7, 2023 · US
Mechanical Engineering
Mechanical Engineering · 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 | F16F9/02 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 89 |
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 | 3 |
| 2016 | 9 |
| 2017 | 4 |
| 2018 | 13 |
| 2019 | 10 |
| 2020 | 6 |
| 2021 | 5 |
| 2022 | 8 |
| 2023 | 9 |
| 2024 | 5 |
| 2025 | 12 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of assembling a bellows accumulator for suspension dampers
US-2023341022-A1 · Oct 26, 2023 · US
Switching valve for an air spring arrangement and an air spring arrangement
US-11524545-B2 · Dec 13, 2022 · US
Air spring
US-11473643-B2 · Oct 18, 2022 · US
Multi-chamber type air spring device
US-11415193-B2 · Aug 16, 2022 · US
Methods and apparatus for vehicle suspension having multiple gas volumes
US-2022242191-A1 · Aug 4, 2022 · US
Methods and apparatus for vehicle suspension having multiple gas volumes
US-11312203-B2 · Apr 26, 2022 · US
Air spring strut having a plastic air spring cover made of thermoplastic
US-11312198-B2 · Apr 26, 2022 · US
Pre-assembled piston accumulator insert device
US-11248677-B2 · Feb 15, 2022 · US
Air spring
US-2022034381-A1 · Feb 3, 2022 · US
Vehicle with expandable space
US-11198396-B2 · Dec 14, 2021 · US
Multi-chamber type air spring device
US-2021033161-A1 · Feb 4, 2021 · US
Switching valve for an air spring arrangement and an air spring arrangement
US-2021016622-A1 · Jan 21, 2021 · US
Pre-Assembled Piston Accumulator Insert Device
US-2021018058-A1 · Jan 21, 2021 · US
Damper
US-10883557-B2 · Jan 5, 2021 · US
Vehicle with expandable space
US-2020391661-A1 · Dec 17, 2020 · US
Sealing apparatus for an air suspension device, air suspension device, and method for sealing a primary volume in an air suspension device
US-2020247206-A1 · Aug 6, 2020 · US
Damper
US-10626946-B2 · Apr 21, 2020 · US
Damper
US-10619692-B2 · Apr 14, 2020 · US
Air spring strut having a plastic air spring cover made of thermoplastic
US-2020101808-A1 · Apr 2, 2020 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16F9/02?
- CPC F16F9/02 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F16F9/02 (Mechanical Engineering)?
- Our database includes 89 publications tagged with this CPC code.
- Is patent activity under CPC F16F9/02 growing?
- Publication counts under this code: 5 in 2024 vs 12 in 2025 (latest complete years).