Hydrogen power system
US-2024344662-A1 · Oct 17, 2024 · 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 | F17C5/02 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 245 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 17 |
| 2016 | 10 |
| 2017 | 21 |
| 2018 | 16 |
| 2019 | 28 |
| 2020 | 28 |
| 2021 | 24 |
| 2022 | 28 |
| 2023 | 19 |
| 2024 | 26 |
| 2025 | 23 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Valve, storage facility and filling station
US-2018347758-A1 · Dec 6, 2018 · US
Valve, storage facility and filling station
US-2018347761-A1 · Dec 6, 2018 · US
Parallel compression in lng plants using a double flow compressor
US-2018283774-A1 · Oct 4, 2018 · US
Method of filling a fuel tank with liquefied gas and liquefied gas system
US-10088108-B2 · Oct 2, 2018 · US
Apparatus and method for boil-off gas reliquefaction
US-2018216876-A1 · Aug 2, 2018 · US
Liquefied natural gas filling device
US-10012349-B2 · Jul 3, 2018 · US
System for measuring high pressure of in-tank regulator
US-2018175410-A1 · Jun 21, 2018 · US
Method for filling a tank with liquefied gas
US-9982841-B2 · May 29, 2018 · US
Cryogenic Tank Assembly with a Pump Drive Unit Disposed Within Fluid Storage Vessel
US-2018119883-A1 · May 3, 2018 · US
New and improved grease delivery system
US-2018112565-A1 · Apr 26, 2018 · US
Method of starting gas delivery from a liquefied gas fuel system to a gas operated engine and a liquefied gas fuel system for a gas operated engine
US-9863370-B2 · Jan 9, 2018 · US
Apparatus and method for filling lpg vehicle with lpg
US-2017356389-A1 · Dec 14, 2017 · US
Frequency Variable Fuel Vapor Recovery Control System And Method For Fuel Dispenser With Self-Calibrated Vapor Liquid Ratio
US-2017349427-A1 · Dec 7, 2017 · US
Fuel storage system
US-2017314511-A1 · Nov 2, 2017 · US
Sealed tank with corrugated sealing membranes
US-2017292652-A1 · Oct 12, 2017 · US
Floating type LNG station
US-9764802-B2 · Sep 19, 2017 · US
Method and device for filling a tank with liquefied gas
US-9765931-B2 · Sep 19, 2017 · US
Method and device for filling a tank with liquefied gas
US-9759381-B2 · Sep 12, 2017 · US
Cargo tank assemblies with ground level access
US-2017253168-A1 · Sep 7, 2017 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F17C5/02?
- CPC F17C5/02 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F17C5/02 (Mechanical Engineering)?
- Our database includes 245 publications tagged with this CPC code.
- Is patent activity under CPC F17C5/02 growing?
- Publication counts under this code: 26 in 2024 vs 23 in 2025 (latest complete years).