- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquidsrotary-piston, or oscillating-piston, positive-displacement pumps
- F04C 28/08 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the rotational speed
Patent holdings for IPC class F04C 28/08
Total number of patents in this class: 241
10-year publication summary
|
10
|
24
|
29
|
19
|
23
|
27
|
11
|
18
|
9
|
14
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Atlas Copco Airpower, naamloze vennootschap | 1036 |
30 |
| Trane International Inc. | 1201 |
16 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1475 |
15 |
| Copeland LP | 695 |
8 |
| Toyota Industries Corporation | 1149 |
7 |
| Gardner Denver Deutschland GmbH | 59 |
7 |
| Leybold GmbH | 294 |
7 |
| Inogen, Inc. | 106 |
5 |
| Project Phoenix, LLC | 53 |
5 |
| Mitsubishi Electric Corporation | 46765 |
4 |
| Oerlikon Leybold Vacuum GmbH | 102 |
4 |
| Tyco Fire & Security GmbH | 3441 |
4 |
| Eaton Intelligent Power Limited | 6056 |
4 |
| LG Electronics Inc. | 73619 |
3 |
| Panasonic Corporation | 19985 |
3 |
| Daikin Industries, Ltd. | 10142 |
3 |
| Johnson Controls Technology Company | 1414 |
3 |
| Clark Equipment Company | 307 |
3 |
| Edwards Limited | 786 |
3 |
| Emerson Climate Technologies, Inc. | 297 |
3 |
| Other owners | 104 |