Rotary engine
US-11371550-B2 · Jun 28, 2022 · US
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Radially-movable sealings for working fluids
Radially-movable sealings for working fluids · 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 | F01C19/02 |
| Official title | Radially-movable sealings for working fluids |
| Display label | Radially-movable sealings for working fluids |
| Total patents | 13 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Apex seal arrangement for rotary internal combustion engine
US-11131194-B2 · Sep 28, 2021 · US
Rotary engine
US-2021054872-A1 · Feb 25, 2021 · US
Apex seal arrangement for rotary internal combustion engine
US-2020325777-A1 · Oct 15, 2020 · US
Surface texture and groove designs for sliding contacts
US-2020300091-A1 · Sep 24, 2020 · US
Apex seal arrangement for rotary internal combustion engine
US-10344870-B2 · Jul 9, 2019 · US
Rotary engine seals
US-10294791-B2 · May 21, 2019 · US
Vane cell machine having a pressure piece which delimits two pressure chambers
US-10107100-B2 · Oct 23, 2018 · US
Vane Cell Machine having a Pressure Piece which Delimits Two Pressure Chambers
US-2017138197-A1 · May 18, 2017 · US
Rotary engine seals
US-2017009582-A1 · Jan 12, 2017 · US
Rotary piston machine, especially rotary engine
US-9534594-B2 · Jan 3, 2017 · US
Technique for apex-seal profile design
US-2015240638-A1 · Aug 27, 2015 · US
Gerotor apparatus for a quasi-isothermal brayton cycle engine
US-2015152732-A1 · Jun 4, 2015 · US