- 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: 794
10-year publication summary
|
85
|
79
|
69
|
68
|
66
|
46
|
71
|
55
|
58
|
26
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Edwards Limited | 774 |
68 |
| LG Electronics Inc. | 75694 |
60 |
| Copeland LP | 700 |
45 |
| Hanon Systems | 2106 |
35 |
| Daikin Industries, Ltd. | 10499 |
23 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 975 |
23 |
| Toyota Industries Corporation | 1209 |
19 |
| Panasonic Intellectual Property Management Co., Ltd. | 33997 |
15 |
| Samsung Electronics Co., Ltd. | 157719 |
14 |
| Trane International Inc. | 1228 |
14 |
| Agilent Technologies, Inc. | 2634 |
12 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1541 |
12 |
| Emerson Climate Technologies, Inc. | 293 |
11 |
| Pfeiffer Vacuum | 184 |
11 |
| Copeland Climate Technologies (Suzhou) Co. Ltd. | 65 |
11 |
| Emerson Climate Technologies (Suzhou) Co., Ltd. | 168 |
10 |
| Mitsubishi Electric Corporation | 48018 |
9 |
| Atlas Copco Airpower, naamloze vennootschap | 1081 |
9 |
| Eaton Intelligent Power Limited | 6243 |
9 |
| Rotoliptic Technologies Incorporated | 21 |
9 |
| Other owners | 375 |