Catalyst Warm-Up Control Method for Hybrid Vehicle and Catalyst Warm-Up Control Device for Hybrid Vehicle
US-2020386135-A1 · Dec 10, 2020 · US
Battery status
Battery status · 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 | F01N2900/104 |
| Official title | Battery status |
| Display label | Battery status |
| Total patents | 166 |
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 | 4 |
| 2017 | 9 |
| 2018 | 9 |
| 2019 | 21 |
| 2020 | 18 |
| 2021 | 18 |
| 2022 | 22 |
| 2023 | 24 |
| 2024 | 16 |
| 2025 | 17 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
System and method for supplying heat to an exhaust gas after-treatment system of a plug-in hybrid electric vehicle
US-10836277-B2 · Nov 17, 2020 · US
Hybrid electric vehicle and method of controlling engine operation for the same
US-10829108-B2 · Nov 10, 2020 · US
Vehicle and controlling method thereof
US-2020340413-A1 · Oct 29, 2020 · US
Hybrid vehicle and method for controlling the same
US-10801427-B2 · Oct 13, 2020 · US
Method for operating a motor vehicle
US-2020298701-A1 · Sep 24, 2020 · US
Methods and systems for catalyst heating
US-10738672-B2 · Aug 11, 2020 · US
Abnormality detection apparatus for electrically heated catalyst
US-2020232370-A1 · Jul 23, 2020 · US
Exhaust purification system of internal combustion engine
US-2020208586-A1 · Jul 2, 2020 · US
Exhaust gas purification apparatus for internal combustion engine
US-10677125-B2 · Jun 9, 2020 · US
Hybrid vehicle and method for controlling the same
US-2020109675-A1 · Apr 9, 2020 · US
Method and system for catalyst temperature control
US-2020102874-A1 · Apr 2, 2020 · US
Controller and control method for hybrid vehicle
US-2020047741-A1 · Feb 13, 2020 · US
Hybrid vehicle and method for controlling the same
US-2019353108-A1 · Nov 21, 2019 · US
Reducing heating of a particulate filter during a regeneration event
US-10480380-B2 · Nov 19, 2019 · US
Hybrid vehicle and control device for hybrid vehicle
US-2019331037-A1 · Oct 31, 2019 · US
Exhaust particulate filter regeneration
US-10449847-B2 · Oct 22, 2019 · US
Secondary air system in an exhaust gas purification system of an internal combustion engine
US-10443475-B2 · Oct 15, 2019 · US
Control apparatus for vehicle
US-2019277176-A1 · Sep 12, 2019 · US
Method to power multiple electric heaters with a single power source
US-10408103-B1 · Sep 10, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01N2900/104?
- CPC F01N2900/104 is the Cooperative Patent Classification code for “Battery status.”
- How many patents are filed under CPC F01N2900/104 (Battery status)?
- Our database includes 166 publications tagged with this CPC code.
- Is patent activity under CPC F01N2900/104 growing?
- Publication counts under this code: 16 in 2024 vs 17 in 2025 (latest complete years).