Fluid-filled vibration damping device
US-2019168596-A1 · Jun 6, 2019 · US
Sealing arrangements
Sealing arrangements · 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 | F16F2230/30 |
| Official title | Sealing arrangements |
| Display label | Sealing arrangements |
| Total patents | 270 |
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 | 9 |
| 2017 | 21 |
| 2018 | 23 |
| 2019 | 35 |
| 2020 | 31 |
| 2021 | 38 |
| 2022 | 25 |
| 2023 | 22 |
| 2024 | 30 |
| 2025 | 22 |
| 2026 | 8 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Air spring connecting device seal
US-2018370316-A1 · Dec 27, 2018 · US
Damper guard
US-2018335101-A1 · Nov 22, 2018 · US
Sealing structure with annular pocket and sealing apparatus
US-2018274626-A1 · Sep 27, 2018 · US
Self-pressurizing film damper
US-10077713-B2 · Sep 18, 2018 · US
Damper
US-2018259026-A1 · Sep 13, 2018 · US
Fluid-filled tubular vibration-damping device
US-10072725-B2 · Sep 11, 2018 · US
Damper
US-10066696-B2 · Sep 4, 2018 · US
Gas strut
US-2018245659-A1 · Aug 30, 2018 · US
Guiding and sealing unit, particularly for a shock absorber rod
US-10054184-B2 · Aug 21, 2018 · US
Sealing structure
US-2018223949-A1 · Aug 9, 2018 · US
Sealing structure
US-10041562-B2 · Aug 7, 2018 · US
Vibration damper
US-2018202508-A1 · Jul 19, 2018 · US
Suspension system for vehicle
US-2018163811-A1 · Jun 14, 2018 · US
Liquid-sealed antivibration device
US-2018135722-A1 · May 17, 2018 · US
Snubber for shovel dipper
US-2018087593-A1 · Mar 29, 2018 · US
Sealing structure
US-9927031-B2 · Mar 27, 2018 · US
Aerated squeeze-film damper
US-9915174-B1 · Mar 13, 2018 · US
Damper device
US-9909637-B2 · Mar 6, 2018 · US
Low-dust/dust-resistant shock absorber
US-9909639-B2 · Mar 6, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16F2230/30?
- CPC F16F2230/30 is the Cooperative Patent Classification code for “Sealing arrangements.”
- How many patents are filed under CPC F16F2230/30 (Sealing arrangements)?
- Our database includes 270 publications tagged with this CPC code.
- Is patent activity under CPC F16F2230/30 growing?
- Publication counts under this code: 30 in 2024 vs 22 in 2025 (latest complete years).