Variable compression ratio internal combustion engine
US-9850813-B2 · Dec 26, 2017 · US
Engines characterised by connections between pistons and main shafts and not specific to preceding main groups
Engines characterised by connections between pistons and main shafts and not specific to preceding main groups · 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 | F02B75/32 |
| Official title | Engines characterised by connections between pistons and main shafts and not specific to preceding main groups |
| Display label | Engines characterised by connections between pistons and main shafts and not specific to preceding main groups |
| Total patents | 231 |
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 | 13 |
| 2016 | 25 |
| 2017 | 24 |
| 2018 | 40 |
| 2019 | 40 |
| 2020 | 25 |
| 2021 | 21 |
| 2022 | 15 |
| 2023 | 15 |
| 2024 | 7 |
| 2025 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Saddle-ride type vehicle
US-2017349232-A1 · Dec 7, 2017 · US
Variable length connecting rod and variable compression ratio internal combustion engine
US-2017342896-A1 · Nov 30, 2017 · US
Connecting rod and internal combustion engine
US-9828909-B2 · Nov 28, 2017 · US
Anti-vibration device for vehicle
US-2017292444-A1 · Oct 12, 2017 · US
Variable Compression Ratio Internal Combustion Engine
US-2017284289-A1 · Oct 5, 2017 · US
Internal combustion engine and method for operating an internal combustion engine
US-2017276069-A1 · Sep 28, 2017 · US
Connecting rod for internal combustion engine with variable compression eccentrical element adjustment device
US-2017268420-A1 · Sep 21, 2017 · US
Bearing structure
US-2017268569-A1 · Sep 21, 2017 · US
Crankshaft having balance weight
US-2017254388-A1 · Sep 7, 2017 · US
Device for compensating for the operating clearances of an engine
US-2017234215-A1 · Aug 17, 2017 · US
Systems and methods for a crankshaft of a piston engine
US-2017218839-A1 · Aug 3, 2017 · US
Coated connecting rod and method of making the same
US-9714677-B2 · Jul 25, 2017 · US
Variable compression ratio internal combustion engine
US-2017191409-A1 · Jul 6, 2017 · US
Crankshaft and method of strengthening shaft component
US-2017165742-A1 · Jun 15, 2017 · US
Variable compression ratio internal combustion engine
US-9650952-B2 · May 16, 2017 · US
Multi-link engine
US-9617912-B2 · Apr 11, 2017 · US
Crankshaft for an internal combustion engine
US-2017097037-A1 · Apr 6, 2017 · US
Single-shaft dual expansion internal combustion engine
US-9605708-B2 · Mar 28, 2017 · US
Crosshead engine
US-9605590-B2 · Mar 28, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02B75/32?
- CPC F02B75/32 is the Cooperative Patent Classification code for “Engines characterised by connections between pistons and main shafts and not specific to preceding main groups.”
- How many patents are filed under CPC F02B75/32 (Engines characterised by connections between pistons and main shafts and not specific to preceding main groups)?
- Our database includes 231 publications tagged with this CPC code.
- Is patent activity under CPC F02B75/32 growing?
- Publication counts under this code: 7 in 2024 vs 6 in 2025 (latest complete years).