Housing assembly for rotary engine and method of manufacturing thereof
US-2026078695-A1 · Mar 19, 2026 · US
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Sealing arrangements in rotary-piston machines or engines (sealings in general F16J)
Sealing arrangements in rotary-piston machines or engines (sealings in general F16J) · 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 | F01C19/00 |
| Official title | Sealing arrangements in rotary-piston machines or engines (sealings in general F16J) |
| Display label | Sealing arrangements in rotary-piston machines or engines (sealings in general F16J) |
| Total patents | 20 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2018 | 3 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 3 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Housing assembly for rotary engine and method of manufacturing thereof
US-12503975-B1 · Dec 23, 2025 · US
Non-lubricated system with abradable sealing element, corresponding sealing element and method for assembling the system
US-12209586-B2 · Jan 28, 2025 · US
Rotor assembly with cooling channels separated by ribs for a rotary engine
US-12180838-B2 · Dec 31, 2024 · US
Rotor assembly with cooling channels separated by ribs for a rotary engine
US-2024337186-A1 · Oct 10, 2024 · US
Compressor having floating seal assembly
US-11939979-B2 · Mar 26, 2024 · US
Compressor having floating seal assembly
US-11692548-B2 · Jul 4, 2023 · US
Compressor Having Floating Seal Assembly
US-2023123953-A1 · Apr 20, 2023 · US
Side wall for rotary engine housing
US-11333068-B1 · May 17, 2022 · US
Non-lubricated system with abradable sealing element, corresponding sealing element and method for assembling the system
US-2022074413-A1 · Mar 10, 2022 · US
Compressor Having Floating Seal Assembly
US-2021340982-A1 · Nov 4, 2021 · US
Control device to achieve variable compression ratio for triangle rotary engine
US-10995618-B2 · May 4, 2021 · US
Piston compression rings of copper-nickel-tin alloys
US-10837554-B2 · Nov 17, 2020 · US
Control device to achieve variable compression ratio for triangle rotary engine
US-2019010806-A1 · Jan 10, 2019 · US
Stiffness tuning and dynamic force balancing rotors of downhole drilling motors
US-2018266181-A1 · Sep 20, 2018 · US
Piston compression rings of copper-nickel-tin alloys
US-2018195612-A1 · Jul 12, 2018 · US
Pump apparatus and marine vessel propelling machine
US-9885355-B2 · Feb 6, 2018 · US
Pump apparatus and marine vessel propelling machine
US-2016265526-A1 · Sep 15, 2016 · US
Scroll pump
US-9353746-B2 · May 31, 2016 · US
Oil seal arrangement for rotary internal combustion engine
US-8985085-B2 · Mar 24, 2015 · US