- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquids; rotary-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: 230
10-year publication summary
|
11
|
26
|
32
|
19
|
24
|
27
|
11
|
17
|
9
|
0
|
| 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 | 984 |
26 |
| Trane International Inc. | 1149 |
16 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1402 |
15 |
| Copeland LP | 674 |
8 |
| Toyota Industries Corporation | 1056 |
7 |
| Gardner Denver Deutschland GmbH | 61 |
7 |
| Leybold GmbH | 298 |
6 |
| Edwards Limited | 799 |
5 |
| Project Phoenix, LLC | 52 |
5 |
| Mitsubishi Electric Corporation | 44794 |
4 |
| Inogen, Inc. | 102 |
4 |
| Knorr-Bremse Systeme fur Schienenfahrzeuge GmbH | 568 |
4 |
| Oerlikon Leybold Vacuum GmbH | 112 |
4 |
| Eaton Intelligent Power Limited | 6296 |
4 |
| LG Electronics Inc. | 70957 |
3 |
| Panasonic Corporation | 20322 |
3 |
| Daikin Industries, Ltd. | 9836 |
3 |
| Johnson Controls Technology Company | 1480 |
3 |
| Clark Equipment Company | 317 |
3 |
| Emerson Climate Technologies, Inc. | 307 |
3 |
| Other owners | 97 |