Air compressor, internal combustion engine assembly, and vehicle
US-2025290441-A1 · Sep 18, 2025 · 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 | F02B65/00 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 45 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 5 |
| 2017 | 1 |
| 2018 | 6 |
| 2019 | 2 |
| 2020 | 4 |
| 2021 | 9 |
| 2022 | 5 |
| 2023 | 6 |
| 2024 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Liquid ammonia phase-change cooling type hybrid power thermal management system
US-12134980-B2 · Nov 5, 2024 · US
Engine
US-2024328346-A1 · Oct 3, 2024 · US
Method to control syngas composition from an engine-based syngas generator
US-2024051824-A1 · Feb 15, 2024 · US
Vehicle and control method for generating compressed air by motor
US-11713712-B2 · Aug 1, 2023 · US
Liquid ammonia phase-change cooling type hybrid power thermal management system
US-2023160330-A1 · May 25, 2023 · US
Combined power system
US-11629636-B2 · Apr 18, 2023 · US
Engine starting system
US-11614062-B2 · Mar 28, 2023 · US
Combined power system
US-2023047255-A1 · Feb 16, 2023 · US
System and method for controlling vehicle accumulator airflow
US-11549450-B2 · Jan 10, 2023 · US
Vehicle and control method for generating compressed air by motor
US-2022252001-A1 · Aug 11, 2022 · US
System and method for controlling vehicle accumulator airflow
US-2022154655-A1 · May 19, 2022 · US
General-purpose engine
US-11280248-B2 · Mar 22, 2022 · US
General purpose engine
US-11280262-B2 · Mar 22, 2022 · US
System and method for controlling vehicle accumulator airflow
US-11280282-B2 · Mar 22, 2022 · US
Tractor
US-11198404-B2 · Dec 14, 2021 · US
System and method for controlling vehicle accumulator airflow
US-2021381451-A1 · Dec 9, 2021 · US
Engine Assembly Including Gearbox For Varying Compression Ratio Of Engine Assembly Using Stationary Actuator
US-2021324944-A1 · Oct 21, 2021 · US
Engine assembly including gearbox for varying compression ratio of engine assembly using stationary actuator
US-11149825-B1 · Oct 19, 2021 · US
Engine starting system
US-2021270224-A1 · Sep 2, 2021 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02B65/00?
- CPC F02B65/00 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F02B65/00 (Mechanical Engineering)?
- Our database includes 45 publications tagged with this CPC code.
- Is patent activity under CPC F02B65/00 growing?
- Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).