Brake system
US-10421444-B2 · Sep 24, 2019 · US
Devices damping pulsations or vibrations in fluids {(F16L55/02 takes precedence)}
Devices damping pulsations or vibrations in fluids {(F16L55/02 takes precedence)} · 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 | F16L55/04 |
| Official title | Devices damping pulsations or vibrations in fluids {(F16L55/02 takes precedence)} |
| Display label | Devices damping pulsations or vibrations in fluids {(F16L55/02 takes precedence)} |
| Total patents | 131 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 13 |
| 2016 | 11 |
| 2017 | 16 |
| 2018 | 17 |
| 2019 | 10 |
| 2020 | 13 |
| 2021 | 13 |
| 2022 | 10 |
| 2023 | 11 |
| 2024 | 8 |
| 2025 | 8 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Damping device
US-10400800-B2 · Sep 3, 2019 · US
Magnetic pressure pulse attenuation
US-10208882-B2 · Feb 19, 2019 · US
Connection device
US-2018363825-A1 · Dec 20, 2018 · US
Pulsation damper and fuel pump device
US-2018328322-A1 · Nov 15, 2018 · US
Conduit connection assembly, a turbine inlet conduit, a turbo charger and a vehicle
US-2018299057-A1 · Oct 18, 2018 · US
Pulsation damping system
US-10100855-B2 · Oct 16, 2018 · US
Breast pump
US-2018250455-A1 · Sep 6, 2018 · US
Pulsation damper suitable for hygienic processing lines
US-10060566-B2 · Aug 28, 2018 · US
Shock mitigation devices
US-2018230759-A1 · Aug 16, 2018 · US
Damping device
US-10024478-B2 · Jul 17, 2018 · US
Hydraulic system for working machine
US-2018180068-A1 · Jun 28, 2018 · US
Machine tool
US-2018161930-A1 · Jun 14, 2018 · US
Pulsation damper
US-9970435-B2 · May 15, 2018 · US
Damping device
US-2018094657-A1 · Apr 5, 2018 · US
Bicycle hydraulic hose cap and bicycle hydraulic hose assembly
US-9903522-B2 · Feb 27, 2018 · US
Flow control actuator with an adjustable frequency
US-9897118-B2 · Feb 20, 2018 · US
Damping device
US-2018045353-A1 · Feb 15, 2018 · US
Leak-free piston style accumulator
US-9885373-B1 · Feb 6, 2018 · US
Degassing, De-bubbling, and Dampening Device
US-2018001265-A1 · Jan 4, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16L55/04?
- CPC F16L55/04 is the Cooperative Patent Classification code for “Devices damping pulsations or vibrations in fluids {(F16L55/02 takes precedence)}.”
- How many patents are filed under CPC F16L55/04 (Devices damping pulsations or vibrations in fluids {(F16L55/02 takes precedence)})?
- Our database includes 131 publications tagged with this CPC code.
- Is patent activity under CPC F16L55/04 growing?
- Publication counts under this code: 8 in 2024 vs 8 in 2025 (latest complete years).