Fault diagnosis device
US-2018372028-A1 · Dec 27, 2018 · US
Testing internal-combustion engines
Testing internal-combustion engines · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01M15/04 |
| Official title | Testing internal-combustion engines |
| Display label | Testing internal-combustion engines |
| Total patents | 215 |
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 | 16 |
| 2016 | 20 |
| 2017 | 19 |
| 2018 | 21 |
| 2019 | 29 |
| 2020 | 31 |
| 2021 | 26 |
| 2022 | 23 |
| 2023 | 14 |
| 2024 | 6 |
| 2025 | 7 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Systems and methods for active engine mount diagnostics
US-2018281805-A1 · Oct 4, 2018 · US
Dynamometer control device and method for estimating moment of inertia using same
US-10041858-B2 · Aug 7, 2018 · US
Turbomachine test bench with active noise control
US-2018066545-A1 · Mar 8, 2018 · US
Dynamometer control device and method for estimating moment of inertia using same
US-2018003589-A1 · Jan 4, 2018 · US
Method of identifying a faulted component in an automotive system
US-2017363030-A1 · Dec 21, 2017 · US
Diagnosis of internal combustion engine performance
US-9841354-B2 · Dec 12, 2017 · US
Control device for dynamometer system
US-2017350775-A1 · Dec 7, 2017 · US
Method for functional testing of arrangement for dynamic fuel consumption measurement
US-9835485-B2 · Dec 5, 2017 · US
Misfire determination device
US-2017299468-A1 · Oct 19, 2017 · US
Method and device for measuring a system to be tested
US-2017220931-A1 · Aug 3, 2017 · US
Intake gas sensor for internal combustion engine
US-9719884-B2 · Aug 1, 2017 · US
Waveform analytics for optimizing performance of a machine
US-2017191899-A1 · Jul 6, 2017 · US
Linear control valve
US-2017184205-A1 · Jun 29, 2017 · US
Testing apparatus for auxiliary belt system and testing system provided with the same
US-9658131-B2 · May 23, 2017 · US
System and Method for Modelling Engine Components
US-2017123392-A1 · May 4, 2017 · US
Project Planning Tool For A Gas Engine Or A Dual-Fuel Engine And Method For Parameterisation Of The Same
US-2017122831-A1 · May 4, 2017 · US
Method for detecting the failure of a charge air cooler
US-9632008-B2 · Apr 25, 2017 · US
Fault diagnostic system
US-2017102295-A1 · Apr 13, 2017 · US
Internal combustion engine and method for detecting operating conditions of an internal combustion engine
US-2017082516-A1 · Mar 23, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01M15/04?
- CPC G01M15/04 is the Cooperative Patent Classification code for “Testing internal-combustion engines.”
- How many patents are filed under CPC G01M15/04 (Testing internal-combustion engines)?
- Our database includes 215 publications tagged with this CPC code.
- Is patent activity under CPC G01M15/04 growing?
- Publication counts under this code: 6 in 2024 vs 7 in 2025 (latest complete years).