Piston ring system for an internal combustion engine with direct water injection
US-2023272853-A1 · Aug 31, 2023 · US
Pistons; Trunk pistons; Plungers (bellows pistons F16J3/06; piston-rings or seats therefor F16J9/00; {manufacture of pistons B23P15/10}; rotary pistons, e.g. for "Wankel" type engines F01C; specific for combustion engines, i.e. constructed to withstand high temperature or modified for guiding, igniting, vaporising or otherwise treating the charge F02F; {pistons for hydraulic engines F03C}; pumps F04B; floats F16K33/00)
Pistons; Trunk pistons; Plungers (bellows pistons F16J3/06; piston-rings or seats therefor F16J9/00; {manufacture of pistons B23P15/10}; rotary pistons, e.g. for "Wankel" type engines F01C; specific for combustion engines, i.e. constructed to withstand high temperature or modified for guiding, igniting, vaporising or otherwise treating the charge F02F; {pistons for hydraulic engines F03C}; pumps F04B; floats F16K33/00) · 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 | F16J1/00 |
| Official title | Pistons; Trunk pistons; Plungers (bellows pistons F16J3/06; piston-rings or seats therefor F16J9/00; {manufacture of pistons B23P15/10}; rotary pistons, e.g. for "Wankel" type engines F01C; specific for combustion engines, i.e. constructed to withstand high temperature or modified for guiding, igniting, vaporising or otherwise treating the charge F02F; {pistons for hydraulic engines F03C}; pumps F04B; floats F16K33/00) |
| Display label | Pistons; Trunk pistons; Plungers (bellows pistons F16J3/06; piston-rings or seats therefor F16J9/00; {manufacture of pistons B23P15/10}; rotary pistons, e.g. for "Wankel" type engines F01C; specific for combustion engines, i.e. constructed to withstand high temperature or modified for guiding, igniting, vaporising or otherwise treating the charge F02F; {pistons for hydraulic engines F03C}; pumps F04B; floats F16K33/00) |
| Total patents | 70 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 7 |
| 2017 | 4 |
| 2018 | 7 |
| 2019 | 9 |
| 2020 | 10 |
| 2021 | 12 |
| 2022 | 3 |
| 2023 | 3 |
| 2024 | 5 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Grading a piston with deposits using thermal scan data
US-11650173-B2 · May 16, 2023 · US
Compressor and manufacturing method thereof
US-11542939-B2 · Jan 3, 2023 · US
Piston design feature to minimize periodic second land pressure variation
US-11306678-B1 · Apr 19, 2022 · US
Engine system
US-11230991-B2 · Jan 25, 2022 · US
Engine system
US-11215136-B2 · Jan 4, 2022 · US
Piston having two piston rings
US-11162585-B2 · Nov 2, 2021 · US
Spark-ignited internal combustion engine
US-11118532-B2 · Sep 14, 2021 · US
Combustion chamber structure for engines
US-11118499-B2 · Sep 14, 2021 · US
Additive manufacturing of elastomeric seals for repair
US-11007704-B2 · May 18, 2021 · US
Compressor and manufacturing method thereof
US-2021140425-A1 · May 13, 2021 · US
Compressor and manufacturing method thereof
US-2021140424-A1 · May 13, 2021 · US
Grading a piston with deposits using thermal scan data
US-2021131987-A1 · May 6, 2021 · US
Grading a piston with deposits using measurement data
US-2021131986-A1 · May 6, 2021 · US
Pump for liquid product comprising a sealing device and spraying installation comprising such a pump
US-10935023-B2 · Mar 2, 2021 · US
Piston of an internal combustion engine
US-10920886-B2 · Feb 16, 2021 · US
Steering column structure
US-10894557-B2 · Jan 19, 2021 · US
Metal seal and fluid control apparatus
US-10883634-B2 · Jan 5, 2021 · US
Piston for a cylinder for an internal combustion engine
US-10801439-B2 · Oct 13, 2020 · US
Bulk unloader follower seal
US-2020318739-A1 · Oct 8, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16J1/00?
- CPC F16J1/00 is the Cooperative Patent Classification code for “Pistons; Trunk pistons; Plungers (bellows pistons F16J3/06; piston-rings or seats therefor F16J9/00; {manufacture of pistons B23P15/10}; rotary pistons, e.g. for "Wankel" type engines F01C; specific for combustion engines, i.e. constructed to withstand high temperature or modified for guiding, igniting, vaporising or otherwise treating the charge F02F; {pistons for hydraulic engines F03C}; pumps F04B; floats F16K33/00).”
- How many patents are filed under CPC F16J1/00 (Pistons; Trunk pistons; Plungers (bellows pistons F16J3/06; piston-rings or seats therefor F16J9/00; {manufacture of pistons B23P15/10}; rotary pistons, e.g. for "Wankel" type engines F01C; specific for combustion engines, i.e. constructed to withstand high temperature or modified for guiding, igniting, vaporising or otherwise treating the charge F02F; {pistons for hydraulic engines F03C}; pumps F04B; floats F16K33/00))?
- Our database includes 70 publications tagged with this CPC code.
- Is patent activity under CPC F16J1/00 growing?
- Publication counts under this code: 5 in 2024 vs 5 in 2025 (latest complete years).