Method for controlling an internal combustion engine
US-10837379-B2 · Nov 17, 2020 · US
Secondary gaseous fuel storages
Secondary gaseous fuel storages · 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 | F02M21/0224 |
| Official title | {Secondary gaseous fuel storages} |
| Display label | Secondary gaseous fuel storages |
| Total patents | 108 |
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 | 10 |
| 2016 | 16 |
| 2017 | 6 |
| 2018 | 12 |
| 2019 | 12 |
| 2020 | 10 |
| 2021 | 4 |
| 2022 | 9 |
| 2023 | 5 |
| 2024 | 8 |
| 2025 | 12 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
System for filling LPG vehicle with LPG using auxiliary bombe
US-10794537-B2 · Oct 6, 2020 · US
Method for controlling a high pressure gas injection internal combustion engine
US-10753274-B2 · Aug 25, 2020 · US
Multiple gas tank assembly with individual pressure monitoring
US-2020094673-A1 · Mar 26, 2020 · US
Gas tank arrangement
US-2019338713-A1 · Nov 7, 2019 · US
Vent fuel handling assembly for a gas engine power plant and method of recovering vent fuel gas from a gas engine power plant
US-2019323464-A1 · Oct 24, 2019 · US
Fuel storage system
US-10443546-B2 · Oct 15, 2019 · US
Apparatus and method for filling LPG vehicle with LPG
US-10428766-B2 · Oct 1, 2019 · US
Fuel filling apparatus and method for bi-fuel vehicle
US-10343515-B2 · Jul 9, 2019 · US
Apparatus and method for filling lpg vehicle with lpg
US-2019145353-A1 · May 16, 2019 · US
Fuel tank system
US-10280873-B2 · May 7, 2019 · US
Method for determining the proper operation of a valve in a gas tank system
US-2019128205-A1 · May 2, 2019 · US
System for filling lpg vehicle with lpg using auxiliary bombe
US-2019113177-A1 · Apr 18, 2019 · US
System for filling lpg vehicle with lpg using auxiliary bombe
US-2019107252-A1 · Apr 11, 2019 · US
Apparatus and method for filling LPG vehicle with LPG
US-10208710-B2 · Feb 19, 2019 · US
System for filling LPG vehicle with LPG using auxiliary bombe
US-10184613-B2 · Jan 22, 2019 · US
A gas tank arrangement
US-2018372273-A1 · Dec 27, 2018 · US
A method for controlling a high pressure gas injection internal combustion engine
US-2018347456-A1 · Dec 6, 2018 · US
A method for controlling an internal combustion engine
US-2018320610-A1 · Nov 8, 2018 · US
Fuel gas supply device for providing a fuel gas, and an internal combustion engine
US-2018216577-A1 · Aug 2, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02M21/0224?
- CPC F02M21/0224 is the Cooperative Patent Classification code for “Secondary gaseous fuel storages.”
- How many patents are filed under CPC F02M21/0224 (Secondary gaseous fuel storages)?
- Our database includes 108 publications tagged with this CPC code.
- Is patent activity under CPC F02M21/0224 growing?
- Publication counts under this code: 8 in 2024 vs 12 in 2025 (latest complete years).