Opposed-piston engine
US-2026085630-A1 · Mar 26, 2026 · US
with cylinders arranged oppositely relative to main shaft and of "flat" type
with cylinders arranged oppositely relative to main shaft and of "flat" type · 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 | F02B75/24 |
| Official title | with cylinders arranged oppositely relative to main shaft and of "flat" type |
| Display label | with cylinders arranged oppositely relative to main shaft and of "flat" type |
| Total patents | 25 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 1 |
| 2020 | 6 |
| 2021 | 2 |
| 2022 | 4 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Internal combustion engine including through-bolt aperture and single through-bolt
US-12480438-B2 · Nov 25, 2025 · US
Internal combustion engine including through-bolt aperture and single through-bolt
US-2025314197-A1 · Oct 9, 2025 · US
Biaxial supporting device for rotary opposed piston engine
US-11913375-B2 · Feb 27, 2024 · US
Internal combustion engine
US-11781454-B2 · Oct 10, 2023 · US
Internal combustion engine
US-2023279793-A1 · Sep 7, 2023 · US
Biaxial supporting device for rotary opposed piston engine
US-2022389861-A1 · Dec 8, 2022 · US
Engine driving apparatus
US-11401906-B2 · Aug 2, 2022 · US
Control of an opposed-piston engine with a mass airflow sensor located after a charge air cooler
US-11384681-B2 · Jul 12, 2022 · US
Internal combustion engine
US-11365676-B2 · Jun 21, 2022 · US
Piston combinations for opposed-piston engines
US-11060403-B2 · Jul 13, 2021 · US
Control of an opposed-piston engine with a mass airflow sensor located after a charge air cooler
US-2021156298-A1 · May 27, 2021 · US
Piston combinations for opposed-piston engines
US-2020400021-A1 · Dec 24, 2020 · US
Engine driving apparatus
US-2020392932-A1 · Dec 17, 2020 · US
Homogeneous charge compression ignition linear generator
US-10815878-B2 · Oct 27, 2020 · US
Internal combustion engine
US-2020318536-A1 · Oct 8, 2020 · US
Opposed-piston engine
US-2020063559-A1 · Feb 27, 2020 · US
Engine
US-10526999-B2 · Jan 7, 2020 · US
Engine
US-2019211773-A1 · Jul 11, 2019 · US
Homogeneous charge compression ignition linear generator
US-2018258845-A1 · Sep 13, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02B75/24?
- CPC F02B75/24 is the Cooperative Patent Classification code for “with cylinders arranged oppositely relative to main shaft and of "flat" type.”
- How many patents are filed under CPC F02B75/24 (with cylinders arranged oppositely relative to main shaft and of "flat" type)?
- Our database includes 25 publications tagged with this CPC code.
- Is patent activity under CPC F02B75/24 growing?
- Publication counts under this code: 1 in 2024 vs 2 in 2025 (latest complete years).