- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01C - Rotary-piston or oscillating-piston machines or engines
- F01C 19/08 - Axially-movable sealings for working fluids
Patent holdings for IPC class F01C 19/08
Total number of patents in this class: 77
10-year publication summary
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4
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6
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7
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6
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3
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2
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5
|
4
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1
|
2
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Pratt & Whitney Canada Corp. | 5479 |
10 |
| LiquidPiston, Inc. | 50 |
7 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 975 |
4 |
| Eagle Industry Co., Ltd. | 1177 |
3 |
| WB Development Company, LLC | 19 |
3 |
| Hitachi Astemo, Ltd. | 6410 |
3 |
| Daikin Industries, Ltd. | 10499 |
2 |
| Agilent Technologies, Inc. | 2634 |
2 |
| Danfoss Commercial Compressors | 96 |
2 |
| Korona Group Ltd. | 7 |
2 |
| Hanon Systems EFP Deutschland GmbH | 97 |
2 |
| Copeland LP | 700 |
2 |
| Samsung Electronics Co., Ltd. | 157719 |
1 |
| Robert Bosch GmbH | 44160 |
1 |
| GM Global Technology Operations LLC | 16124 |
1 |
| Toyota Industries Corporation | 1209 |
1 |
| Anest Iwata Corporation | 155 |
1 |
| AVL List GmbH | 1324 |
1 |
| Brands & Products IPR Holding GmbH & Co. KG | 3 |
1 |
| CBF s.r.l. | 6 |
1 |
| Other owners | 27 |