System and method for controlling airflow through cylinders of an engine during a deceleration fuel cutoff event
US-11156179-B1 · Oct 26, 2021 · US
Slide valve-gear or valve-arrangements (with pure rotary or oscillatory movement F01L7/00) · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F01L5/00 |
| Official title | Slide valve-gear or valve-arrangements (with pure rotary or oscillatory movement F01L7/00) |
| Display label | Slide valve-gear or valve-arrangements (with pure rotary or oscillatory movement F01L7/00) |
| Total patents | 3 |
Year-over-year patent counts classified under this CPC code.
Filing activity appears stable based on the most recent years.
| Year | Patents |
|---|---|
| 2017 | 1 |
| 2019 | 1 |
| 2021 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-11156179-B1 · Oct 26, 2021 · US
US-10260128-B2 · Apr 16, 2019 · US
US-2017253950-A1 · Sep 7, 2017 · US