- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquidsrotary-piston, or oscillating-piston, positive-displacement pumps
- F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluidsPumping installations specially adapted for elastic fluidsMulti-stage pumps specially adapted for elastic fluids
Patent holdings for IPC class F04C 23/00
Total number of patents in this class: 1639
10-year publication summary
|
142
|
146
|
176
|
137
|
125
|
115
|
118
|
98
|
56
|
30
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 72559 |
196 |
| Copeland LP | 687 |
113 |
| Daikin Industries, Ltd. | 9971 |
92 |
| Mitsubishi Electric Corporation | 45860 |
69 |
| Edwards Limited | 790 |
61 |
| Toyota Industries Corporation | 1093 |
57 |
| Toshiba Carrier Corporation | 502 |
53 |
| Fujitsu General Limited | 594 |
41 |
| Panasonic Intellectual Property Management Co., Ltd. | 31022 |
39 |
| Danfoss Commercial Compressors | 90 |
37 |
| Pfeiffer Vacuum | 170 |
37 |
| Bitzer Kuehlmaschinenbau GmbH | 152 |
34 |
| Atlas Copco Airpower, naamloze vennootschap | 1019 |
32 |
| GREE Electric Appliances, Inc. of Zhuhai | 3221 |
31 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 882 |
27 |
| Samsung Electronics Co., Ltd. | 144426 |
26 |
| Trane International Inc. | 1175 |
24 |
| Mitsubishi Heavy Industries, Ltd. | 8657 |
22 |
| GREE Green Refrigeration Technology Center Co., Ltd. of Zhuhai | 163 |
22 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1453 |
22 |
| Other owners | 604 |