- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquidsrotary-piston, or oscillating-piston, positive-displacement pumps
- F04C 18/04 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents of internal-axis type
Patent holdings for IPC class F04C 18/04
Total number of patents in this class: 30
10-year publication summary
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2
|
1
|
2
|
3
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0
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4
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4
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1
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2
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0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Daikin Industries, Ltd. | 10027 |
7 |
| LG Electronics Inc. | 73344 |
6 |
| Copeland LP | 700 |
3 |
| Emerson Climate Technologies, Inc. | 302 |
2 |
| Anhui Meizhi Precision Manufacturing Co., Ltd. | 54 |
2 |
| Samsung Electronics Co., Ltd. | 146811 |
1 |
| Halliburton Energy Services, Inc. | 20911 |
1 |
| Honeywell International Inc. | 13540 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 31562 |
1 |
| Hanon Systems | 1958 |
1 |
| Sumitomo Electric Sintered Alloy, Ltd. | 227 |
1 |
| Taiho Kogyo Co., Ltd. | 330 |
1 |
| Trane International Inc. | 1186 |
1 |
| Gardner Denver, LLC | 17 |
1 |
| Industrial Technologies and Services, LLC | 167 |
1 |
| Other owners | 0 |