- 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: 1712
10-year publication summary
|
146
|
176
|
137
|
125
|
115
|
119
|
100
|
66
|
67
|
39
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 75818 |
201 |
| Copeland LP | 705 |
112 |
| Daikin Industries, Ltd. | 10504 |
95 |
| Mitsubishi Electric Corporation | 48048 |
72 |
| Edwards Limited | 773 |
66 |
| Toyota Industries Corporation | 1210 |
61 |
| Toshiba Carrier Corporation | 472 |
53 |
| Fujitsu General Limited | 597 |
42 |
| Panasonic Intellectual Property Management Co., Ltd. | 34035 |
39 |
| Danfoss Commercial Compressors | 96 |
37 |
| Pfeiffer Vacuum | 185 |
37 |
| Bitzer Kuehlmaschinenbau GmbH | 158 |
34 |
| GREE Electric Appliances, Inc. of Zhuhai | 3317 |
34 |
| Samsung Electronics Co., Ltd. | 157946 |
33 |
| Atlas Copco Airpower, naamloze vennootschap | 1081 |
31 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 976 |
29 |
| Trane International Inc. | 1229 |
25 |
| GREE Green Refrigeration Technology Center Co., Ltd. of Zhuhai | 169 |
23 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1544 |
23 |
| Mitsubishi Heavy Industries, Ltd. | 9139 |
22 |
| Other owners | 643 |