- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01C - Rotary-piston or oscillating-piston machines or engines
- F01C 19/04 - Radially-movable sealings for working fluids of rigid material
Patent holdings for IPC class F01C 19/04
Total number of patents in this class: 16
10-year publication summary
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2
|
1
|
0
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0
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1
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0
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0
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0
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0
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0
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Quantex ARC Limited | 13 |
4 |
| Pratt & Whitney Canada Corp. | 5050 |
2 |
| Korona Group Ltd. | 7 |
2 |
| The Regents of the University of California | 20355 |
1 |
| Weatherford Technology Holdings, LLC | 2033 |
1 |
| En3 GmbH | 3 |
1 |
| Lumenium LLC | 16 |
1 |
| Power Source Technologies, Inc. | 4 |
1 |
| EngineWorks GmbH | 1 |
1 |
| MRCC Industries SAS | 4 |
1 |
| Marlin Rotary Piston Engine LLC | 1 |
1 |
| Other owners | 0 |