Air leading-type stratified scavenging two-stroke internal-combustion engine
US-10487777-B2 · Nov 26, 2019 · US
characterised by having ports in cylinder wall for scavenging or charging
characterised by having ports in cylinder wall for scavenging or charging · 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 | F02F1/22 |
| Official title | characterised by having ports in cylinder wall for scavenging or charging |
| Display label | characterised by having ports in cylinder wall for scavenging or charging |
| Total patents | 105 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 14 |
| 2016 | 12 |
| 2017 | 10 |
| 2018 | 14 |
| 2019 | 15 |
| 2020 | 8 |
| 2021 | 5 |
| 2022 | 4 |
| 2023 | 17 |
| 2024 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Integral cylinder head with port condensate
US-10450942-B2 · Oct 22, 2019 · US
Internal combustion engine and method for manufacturing internal combustion engine
US-2019292954-A1 · Sep 26, 2019 · US
Integral cylinder head with port condensate
US-2019218960-A1 · Jul 18, 2019 · US
Fluid delivery port of an integral cylinder head
US-2019218965-A1 · Jul 18, 2019 · US
Uniflow engine with fluid flow arrangement
US-10309295-B2 · Jun 4, 2019 · US
Two-cycle engine and engine work machine
US-10260453-B2 · Apr 16, 2019 · US
Valve Train For Opposed-Piston Four-Stroke Engine
US-2019093479-A1 · Mar 28, 2019 · US
Block Structure and Fastening Features for Opposed-Piston Four-Stroke Engines
US-2019093478-A1 · Mar 28, 2019 · US
Suction tube of stratified scavenging engine
US-10197013-B2 · Feb 5, 2019 · US
Cooling structure for multi-cylinder engine
US-10156180-B2 · Dec 18, 2018 · US
Barrier ring and assembly for a cylinder of an opposed-piston engine
US-10156202-B2 · Dec 18, 2018 · US
Uniflow engine with intake and/or exhaust valves
US-2018328263-A1 · Nov 15, 2018 · US
Two-stroke engine and production series of two-stroke engines
US-10100718-B2 · Oct 16, 2018 · US
Port edge shape with continuous curvature for improved ring-port interaction and flow area
US-10082099-B2 · Sep 25, 2018 · US
Engine block construction for opposed piston engine
US-10072604-B2 · Sep 11, 2018 · US
Internal combustion engine
US-10018100-B2 · Jul 10, 2018 · US
Uniflow two-stroke engine
US-9938890-B2 · Apr 10, 2018 · US
Air leading-type stratified scavenging two-stroke internal-combustion engine
US-9938926-B2 · Apr 10, 2018 · US
Cylinder lubrication system for two-stroke engine
US-9926821-B2 · Mar 27, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02F1/22?
- CPC F02F1/22 is the Cooperative Patent Classification code for “characterised by having ports in cylinder wall for scavenging or charging.”
- How many patents are filed under CPC F02F1/22 (characterised by having ports in cylinder wall for scavenging or charging)?
- Our database includes 105 publications tagged with this CPC code.
- Is patent activity under CPC F02F1/22 growing?
- Publication counts under this code: 17 in 2023 vs 5 in 2024 (latest complete years).