- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquidsrotary-piston, or oscillating-piston, positive-displacement pumps
- F04C 27/00 - Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
Patent holdings for IPC class F04C 27/00
Total number of patents in this class: 751
10-year publication summary
|
50
|
85
|
78
|
68
|
66
|
66
|
46
|
69
|
52
|
36
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Edwards Limited | 792 |
59 |
| LG Electronics Inc. | 73531 |
53 |
| Copeland LP | 700 |
46 |
| Hanon Systems | 1972 |
33 |
| Daikin Industries, Ltd. | 10070 |
23 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 891 |
23 |
| Toyota Industries Corporation | 1132 |
19 |
| Panasonic Intellectual Property Management Co., Ltd. | 31806 |
15 |
| Trane International Inc. | 1191 |
14 |
| Samsung Electronics Co., Ltd. | 147501 |
13 |
| Emerson Climate Technologies, Inc. | 302 |
12 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1464 |
12 |
| Pfeiffer Vacuum | 167 |
11 |
| Emerson Climate Technologies (Suzhou) Co., Ltd. | 170 |
10 |
| Copeland Climate Technologies (Suzhou) Co. Ltd. | 58 |
10 |
| Agilent Technologies, Inc. | 2637 |
9 |
| Atlas Copco Airpower, naamloze vennootschap | 1037 |
9 |
| Rotoliptic Technologies Incorporated | 20 |
9 |
| Mitsubishi Electric Corporation | 46397 |
8 |
| Bitzer Kühlmaschinenbau GmbH | 177 |
8 |
| Other owners | 355 |