Method
US-2026092610-A1 · Apr 2, 2026 · US
Gas ports
Gas ports · 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 | F15B2201/415 |
| Official title | Gas ports |
| Display label | Gas ports |
| Total patents | 33 |
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 | 2 |
| 2016 | 3 |
| 2017 | 1 |
| 2019 | 1 |
| 2020 | 2 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 4 |
| 2024 | 3 |
| 2025 | 12 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Device, system and method for isothermal compression, constant-pressure power generation and physical energy storage
US-12497941-B2 · Dec 16, 2025 · US
Hydraulic accumulator
US-12383911-B2 · Aug 12, 2025 · US
Hydraulic accumulator
US-12331760-B2 · Jun 17, 2025 · US
External pressure fluid reservoir for storing energy
US-2025188958-A1 · Jun 12, 2025 · US
Surface treatment jig
US-2025135481-A1 · May 1, 2025 · US
Pressure Accumulator
US-2025129802-A1 · Apr 24, 2025 · US
Hydraulic Accumulator
US-2025092885-A1 · Mar 20, 2025 · US
Manufacturing method and exterior body of accumulator
US-2025067282-A1 · Feb 27, 2025 · US
Hydraulic Accumulator
US-2025065340-A1 · Feb 27, 2025 · US
Bellows accumulator fixation apparatus for suspension dampers
US-12227047-B2 · Feb 18, 2025 · US
Method of charging a bellows accumulator
US-12188492-B1 · Jan 7, 2025 · US
Method of assembling a bellows accumulator for suspension dampers
US-12188540-B2 · Jan 7, 2025 · US
Hydraulic Accumulator
US-2024318669-A1 · Sep 26, 2024 · US
Device, system and method for isothermal compression, constant-pressure power generation and physical energy storage
US-2024271590-A1 · Aug 15, 2024 · US
Hydraulic Accumulator
US-2024035490-A1 · Feb 1, 2024 · US
Method of assembling a bellows accumulator for suspension dampers
US-2023341022-A1 · Oct 26, 2023 · US
Bellows accumulator fixation apparatus for suspension dampers
US-2023339278-A1 · Oct 26, 2023 · US
Hydraulic accumulator
US-11598351-B2 · Mar 7, 2023 · US
Accumulator sensor apparatus, system, and method
US-2023003236-A1 · Jan 5, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F15B2201/415?
- CPC F15B2201/415 is the Cooperative Patent Classification code for “Gas ports.”
- How many patents are filed under CPC F15B2201/415 (Gas ports)?
- Our database includes 33 publications tagged with this CPC code.
- Is patent activity under CPC F15B2201/415 growing?
- Publication counts under this code: 3 in 2024 vs 12 in 2025 (latest complete years).