Hydrogen refueling station and system, and method of using the same
US-2023279995-A1 · Sep 7, 2023 · US
on the pipes
on the pipes · 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 | F17C2227/039 |
| Official title | on the pipes |
| Display label | on the pipes |
| Total patents | 71 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 6 |
| 2017 | 5 |
| 2018 | 10 |
| 2019 | 11 |
| 2020 | 7 |
| 2021 | 7 |
| 2022 | 7 |
| 2023 | 5 |
| 2024 | 2 |
| 2025 | 6 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hydrogen refueling system and method of hydrogen refueling
US-2023204159-A1 · Jun 29, 2023 · US
Cryogenic storage system
US-2023089359-A1 · Mar 23, 2023 · US
Device and process for refueling containers with pressurized gas
US-11499765-B2 · Nov 15, 2022 · US
Method for filling a tank with liquefied gas
US-11499676-B2 · Nov 15, 2022 · US
Process and device for filling tanks with pressurized gas
US-11408562-B2 · Aug 9, 2022 · US
Pressure building cryogenic fluid delivery system
US-11371654-B2 · Jun 28, 2022 · US
Process and device for vaporizing purge liquid from a cryogenic liquid vaporizer
US-2022163432-A1 · May 26, 2022 · US
Process for fueling of vehicle tanks with compressed hydrogen comprising heat exchange of the compressed hydrogen with chilled ammonia
US-11287089-B1 · Mar 29, 2022 · US
Method for filling a tank with liquefied gas
US-2022026025-A1 · Jan 27, 2022 · US
Cryogenic storage system
US-2021372570-A1 · Dec 2, 2021 · US
Gas supply system
US-11168620-B2 · Nov 9, 2021 · US
Filling apparatus
US-2021285602-A1 · Sep 16, 2021 · US
Method for measuring fluid level in liquid hydrogen tank and liquid hydrogen storage system
US-11092290-B2 · Aug 17, 2021 · US
Installation and method for filling tanks with pressurized fluid
US-11060665-B2 · Jul 13, 2021 · US
Ambient Air Vaporizer with Icephobic/Waterphobic Treatment
US-2021164619-A1 · Jun 3, 2021 · US
Vehicle and method for filling fuel gas
US-10995913-B2 · May 4, 2021 · US
Gas supply method and gas supply system
US-2020278084-A1 · Sep 3, 2020 · US
Method for measuring fluid level in liquid hydrogen tank and liquid hydrogen storage system
US-2020208781-A1 · Jul 2, 2020 · US
Control system and method for pressure-let-downs stations
US-10677392-B2 · Jun 9, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F17C2227/039?
- CPC F17C2227/039 is the Cooperative Patent Classification code for “on the pipes.”
- How many patents are filed under CPC F17C2227/039 (on the pipes)?
- Our database includes 71 publications tagged with this CPC code.
- Is patent activity under CPC F17C2227/039 growing?
- Publication counts under this code: 2 in 2024 vs 6 in 2025 (latest complete years).