Camshaft adjustment system for flexibly starting an internal combustion engine, and method for operating a drivetrain
US-12535019-B2 · Jan 27, 2026 · US
Cold running
Cold running · 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 | F01L2800/02 |
| Official title | Cold running |
| Display label | Cold running |
| Total patents | 36 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 4 |
| 2017 | 5 |
| 2018 | 6 |
| 2019 | 6 |
| 2020 | 3 |
| 2021 | 3 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Camshaft adjustment system for flexibly starting an internal combustion engine, and method for operating a drivetrain
US-2024287921-A1 · Aug 29, 2024 · US
Cam phasing control for thermal management
US-12018623-B2 · Jun 25, 2024 · US
Piston-operated variable valve device and a variable valve system having the same
US-2024102424-A1 · Mar 28, 2024 · US
Internal combustion engine system
US-11698040-B1 · Jul 11, 2023 · US
Methods and system for preparing an engine for starting
US-11603818-B1 · Mar 14, 2023 · US
Valve actuation system comprising in-series lost motion components for use in cylinder deactivation and auxiliary valve actuations
US-11408310-B2 · Aug 9, 2022 · US
System and method for warming an emissions device of an engine exhaust system
US-11401875-B2 · Aug 2, 2022 · US
System and method for warming an emissions device of an engine exhaust system
US-2021262407-A1 · Aug 26, 2021 · US
Valve actuation system comprising in-series lost motion components for use in cylinder deactivation and auxiliary valve actuations
US-2021180481-A1 · Jun 17, 2021 · US
System and method to reduce engine hydrocarbon emissions
US-10954869-B1 · Mar 23, 2021 · US
Cam phasing control for thermal management
US-2020362772-A1 · Nov 19, 2020 · US
Method for controlling an internal combustion engine having a camshaft
US-10808636-B2 · Oct 20, 2020 · US
Rocker assembly having improved durability
US-10570786-B2 · Feb 25, 2020 · US
Method of cam phase control based on cylinder wall temperature
US-10436140-B2 · Oct 8, 2019 · US
Method and device for inspecting a valve drive in an internal combustion engine
US-10386534-B2 · Aug 20, 2019 · US
Method and system for variable cam timing device
US-10337361-B2 · Jul 2, 2019 · US
Variable valve actuator having low-pressure relief
US-10323579-B2 · Jun 18, 2019 · US
Method for heating a sliding camshaft actuator
US-10316777-B2 · Jun 11, 2019 · US
Method and system for variable cam timing device
US-10267187-B2 · Apr 23, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01L2800/02?
- CPC F01L2800/02 is the Cooperative Patent Classification code for “Cold running.”
- How many patents are filed under CPC F01L2800/02 (Cold running)?
- Our database includes 36 publications tagged with this CPC code.
- Is patent activity under CPC F01L2800/02 growing?
- Publication counts under this code: 2 in 2023 vs 3 in 2024 (latest complete years).