Engine
US-2024309802-A1 · Sep 19, 2024 · US
with pumping cylinder situated at side of working cylinder, e.g. the cylinders being parallel
with pumping cylinder situated at side of working cylinder, e.g. the cylinders being parallel · 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 | F02B33/22 |
| Official title | with pumping cylinder situated at side of working cylinder, e.g. the cylinders being parallel |
| Display label | with pumping cylinder situated at side of working cylinder, e.g. the cylinders being parallel |
| Total patents | 61 |
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 | 5 |
| 2016 | 3 |
| 2017 | 4 |
| 2018 | 4 |
| 2019 | 4 |
| 2020 | 5 |
| 2021 | 6 |
| 2022 | 13 |
| 2023 | 13 |
| 2024 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Split cycle internal combustion engine
US-11952938-B2 · Apr 9, 2024 · US
Opposed, free-piston engine
US-11879338-B2 · Jan 23, 2024 · US
Engine assembly provided with an internal combustion engine cooled by a phase change material
US-11788456-B2 · Oct 17, 2023 · US
Split cycle internal combustion engine
US-2023296045-A1 · Sep 21, 2023 · US
Engine
US-11739684-B2 · Aug 29, 2023 · US
Split-cycle internal combustion engine
US-11739682-B2 · Aug 29, 2023 · US
Multiple cylinder engine
US-11674434-B2 · Jun 13, 2023 · US
Multiple cylinder engine
US-11635020-B2 · Apr 25, 2023 · US
Opposed, free-piston engine
US-2023098581-A1 · Mar 30, 2023 · US
Internal combustion engine and operating method of same
US-11603810-B2 · Mar 14, 2023 · US
Multiple cylinder engine
US-11603793-B2 · Mar 14, 2023 · US
Internal combustion engine system
US-11598248-B2 · Mar 7, 2023 · US
Engine
US-2023033387-A1 · Feb 2, 2023 · US
A method and a relative apparatus for producing liquified gases
US-2023031323-A1 · Feb 2, 2023 · US
Split-cycle internal combustion engine
US-2023003165-A1 · Jan 5, 2023 · US
Engine assemely provided with an internal combustion engine cooled by a phase change material
US-2022412246-A1 · Dec 29, 2022 · US
Internal combustion engine system
US-11519305-B2 · Dec 6, 2022 · US
Oxycombustion engine systems including recirculation management features
US-11512656-B2 · Nov 29, 2022 · US
Engine
US-11492960-B2 · Nov 8, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02B33/22?
- CPC F02B33/22 is the Cooperative Patent Classification code for “with pumping cylinder situated at side of working cylinder, e.g. the cylinders being parallel.”
- How many patents are filed under CPC F02B33/22 (with pumping cylinder situated at side of working cylinder, e.g. the cylinders being parallel)?
- Our database includes 61 publications tagged with this CPC code.
- Is patent activity under CPC F02B33/22 growing?
- Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).