Method and apparatus for diagnosing an exhaust gas sensor
US-12216180-B2 · Feb 4, 2025 · US
with sensor resistivity varying with oxygen concentration (F02D41/1456 takes precedence)
with sensor resistivity varying with oxygen concentration (F02D41/1456 takes precedence) · 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 | F02D41/1455 |
| Official title | {with sensor resistivity varying with oxygen concentration (F02D41/1456 takes precedence)} |
| Display label | with sensor resistivity varying with oxygen concentration (F02D41/1456 takes precedence) |
| Total patents | 59 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 9 |
| 2017 | 7 |
| 2018 | 8 |
| 2019 | 6 |
| 2020 | 6 |
| 2021 | 4 |
| 2022 | 4 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Device and method for determining an offset in a signal of a sensor for measuring residual oxygen
US-12209519-B2 · Jan 28, 2025 · US
Method, computing unit, and computer program for operating an internal-combustion engine
US-11879406-B2 · Jan 23, 2024 · US
Device and method for determining an offset in a signal of a sensor for measuring residual oxygen
US-2023340900-A1 · Oct 26, 2023 · US
Verfahren, Recheneinheit und Computerprogramm zum Betreiben einer Brennkraftmaschine
US-2023258140-A1 · Aug 17, 2023 · US
Methods and system for controlling selective catalytic reductant catalyst of a gasoline engine
US-11603787-B2 · Mar 14, 2023 · US
Method, computer unit and computer program for operating a combustion engine
US-11459930-B2 · Oct 4, 2022 · US
Methods and system for controlling selective catalytic reductant catalyst of a gasoline engine
US-2022170400-A1 · Jun 2, 2022 · US
Oxygen sensor adaptive impedance control
US-11313303-B1 · Apr 26, 2022 · US
Method, computer unit and computer program for operating a combustion engine
US-2022112831-A1 · Apr 14, 2022 · US
Method and apparatus for diagnosing an exhaust gas sensor
US-2021348575-A1 · Nov 11, 2021 · US
Method and control unit for regulating a fill level of a storage of a catalytic converter for an exhaust gas component
US-11111873-B2 · Sep 7, 2021 · US
Heater in-circuit capacitive measurement
US-11092101-B2 · Aug 17, 2021 · US
Method and control unit for regulating a fill level of a reservoir of a catalytic converter for an exhaust gas component in coasting mode
US-10914257-B2 · Feb 9, 2021 · US
Valve duty differentiated exhaust gas recirculation control method and exhaust gas recirculation system
US-10794305-B2 · Oct 6, 2020 · US
Method for controlling air-fuel ratio in idle purge-off mode
US-10753293-B2 · Aug 25, 2020 · US
Method and control unit for regulating a fill level of a reservoir of a catalytic converter for an exhaust gas component in coasting mode
US-2020116095-A1 · Apr 16, 2020 · US
Heater in-circuit capacitive measurement
US-2020063682-A1 · Feb 27, 2020 · US
Post catalyst dynamic scheduling and control
US-10563606-B2 · Feb 18, 2020 · US
Valve duty differentiated exhaust gas recirculation control method and exhaust gas recirculation system
US-2020018250-A1 · Jan 16, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02D41/1455?
- CPC F02D41/1455 is the Cooperative Patent Classification code for “with sensor resistivity varying with oxygen concentration (F02D41/1456 takes precedence).”
- How many patents are filed under CPC F02D41/1455 (with sensor resistivity varying with oxygen concentration (F02D41/1456 takes precedence))?
- Our database includes 59 publications tagged with this CPC code.
- Is patent activity under CPC F02D41/1455 growing?
- Publication counts under this code: 1 in 2024 vs 2 in 2025 (latest complete years).