Control device and control method for variable valve timing mechanism
US-12372015-B2 · Jul 29, 2025 · US
Temperature
Temperature · 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 | F01L2820/044 |
| Official title | Temperature |
| Display label | Temperature |
| Total patents | 52 |
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 | 2 |
| 2016 | 4 |
| 2017 | 2 |
| 2018 | 14 |
| 2019 | 7 |
| 2020 | 6 |
| 2021 | 5 |
| 2022 | 6 |
| 2023 | 2 |
| 2024 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Lift regulator for a variable lift valve gear with two working positions
US-12116910-B2 · Oct 15, 2024 · US
Cam phasing control for thermal management
US-12018623-B2 · Jun 25, 2024 · US
Method for controlling a valve arrangement
US-11959425-B2 · Apr 16, 2024 · US
Oil passage switching valve and valve timing changing apparatus
US-11692463-B2 · Jul 4, 2023 · US
Method for controlling camshaft orientation for improved engine re-starting of an engine having start-stop capability
US-11643950-B2 · May 9, 2023 · US
Lift Regulator for a Variable Lift Valve Gear With Two Working Positions
US-2022403762-A1 · Dec 22, 2022 · US
A method for controlling a valve arrangement
US-2022389878-A1 · Dec 8, 2022 · US
Method for controlling camshaft orientation for improved engine re-starting of an engine having start-stop capability
US-2022364485-A1 · Nov 17, 2022 · US
Valve opening and closing timing control device
US-11300016-B2 · Apr 12, 2022 · US
Valve timing controller
US-11236645-B2 · Feb 1, 2022 · US
Valve opening and closing timing control device
US-2022003132-A1 · Jan 6, 2022 · US
Control Device and Control Method for Variable Valve Timing Mechanism
US-2021340887-A1 · Nov 4, 2021 · US
Valve timing controller
US-2021317762-A1 · Oct 14, 2021 · US
Compression release valvetrain design
US-11035263-B2 · Jun 15, 2021 · US
Valve timing adjustment device, and control device and control method for valve timing adjustment device
US-11008902-B2 · May 18, 2021 · US
Oil passage switching valve and valve timing changing apparatus
US-2021062689-A1 · Mar 4, 2021 · US
Cam phasing control for thermal management
US-2020362772-A1 · Nov 19, 2020 · US
Valve timing adjustment device, and control device and control method for valve timing adjustment device
US-2020256219-A1 · Aug 13, 2020 · US
Four-stroke internal combustion engine thereto related vehicle and method
US-10669951-B2 · Jun 2, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01L2820/044?
- CPC F01L2820/044 is the Cooperative Patent Classification code for “Temperature.”
- How many patents are filed under CPC F01L2820/044 (Temperature)?
- Our database includes 52 publications tagged with this CPC code.
- Is patent activity under CPC F01L2820/044 growing?
- Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).