Air spring
US-9759282-B2 · Sep 12, 2017 · US
the flexible wall being of the rolling diaphragm type
the flexible wall being of the rolling diaphragm type · 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 | F16F9/05 |
| Official title | the flexible wall being of the rolling diaphragm type |
| Display label | the flexible wall being of the rolling diaphragm type |
| Total patents | 192 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 22 |
| 2016 | 32 |
| 2017 | 27 |
| 2018 | 16 |
| 2019 | 28 |
| 2020 | 19 |
| 2021 | 13 |
| 2022 | 11 |
| 2023 | 14 |
| 2024 | 4 |
| 2025 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Damping air spring and shock absorber combination for heavy-duty vehicle axle/suspension systems
US-9744824-B2 · Aug 29, 2017 · US
End member assemblies as well as gas spring assemblies and suspension systems including same
US-2017204929-A1 · Jul 20, 2017 · US
Flexible sleeve, gas spring assembly and method
US-9707815-B2 · Jul 18, 2017 · US
Flexible spring member as well as gas spring assembly and method of manufacture
US-9644701-B2 · May 9, 2017 · US
Air spring and railcar
US-9545933-B2 · Jan 17, 2017 · US
Gas spring end members as well as gas spring assemblies including same
US-9527358-B2 · Dec 27, 2016 · US
Pusher axle suspension system having single air spring
US-9527359-B2 · Dec 27, 2016 · US
Air spring arrangement with integrated control valve
US-9527366-B2 · Dec 27, 2016 · US
Air spring for railroad car
US-9517781-B2 · Dec 13, 2016 · US
End member and gas spring assembly including same
US-9511643-B2 · Dec 6, 2016 · US
Tape element containing crack propagation channels and ripstop ridges
US-2016311261-A1 · Oct 27, 2016 · US
Damping air spring and shock absorber combination for heavy-duty vehicle axle/suspension systems
US-2016280033-A1 · Sep 29, 2016 · US
Air spring and railcar
US-2016264155-A1 · Sep 15, 2016 · US
Air spring strut
US-9435393-B2 · Sep 6, 2016 · US
Assembly for air spring, air spring, and carriage for vehicle
US-2016252153-A1 · Sep 1, 2016 · US
End closures as well as gas spring assemblies and methods of assembly including same
US-2016252154-A1 · Sep 1, 2016 · US
Gas spring and gas damper assemblies, suspension systems and methods
US-2016236532-A1 · Aug 18, 2016 · US
Elastomeric thermal barrier as well as gas spring assembly and suspension system including same
US-9387741-B2 · Jul 12, 2016 · US
Air Spring Comprising Level-Measuring Device Integrated into the Bellows
US-2016195151-A1 · Jul 7, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16F9/05?
- CPC F16F9/05 is the Cooperative Patent Classification code for “the flexible wall being of the rolling diaphragm type.”
- How many patents are filed under CPC F16F9/05 (the flexible wall being of the rolling diaphragm type)?
- Our database includes 192 publications tagged with this CPC code.
- Is patent activity under CPC F16F9/05 growing?
- Publication counts under this code: 4 in 2024 vs 6 in 2025 (latest complete years).