- 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: 799
10-year publication summary
|
85
|
79
|
69
|
68
|
66
|
46
|
71
|
55
|
58
|
32
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Edwards Limited | 773 |
68 |
| LG Electronics Inc. | 75910 |
62 |
| Copeland LP | 707 |
45 |
| Hanon Systems | 2129 |
36 |
| Daikin Industries, Ltd. | 10513 |
23 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 976 |
23 |
| Toyota Industries Corporation | 1219 |
19 |
| Panasonic Intellectual Property Management Co., Ltd. | 34335 |
15 |
| Samsung Electronics Co., Ltd. | 158605 |
14 |
| Trane International Inc. | 1237 |
14 |
| Agilent Technologies, Inc. | 2640 |
12 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1553 |
12 |
| Pfeiffer Vacuum | 188 |
12 |
| Copeland Climate Technologies (Suzhou) Co. Ltd. | 67 |
12 |
| Emerson Climate Technologies, Inc. | 292 |
11 |
| Emerson Climate Technologies (Suzhou) Co., Ltd. | 168 |
10 |
| Eaton Intelligent Power Limited | 6269 |
10 |
| Mitsubishi Electric Corporation | 48236 |
9 |
| Atlas Copco Airpower, naamloze vennootschap | 1081 |
9 |
| Rotoliptic Technologies Incorporated | 21 |
9 |
| Other owners | 374 |