- 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 28/02 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for several pumps connected in series or in parallel
Patent holdings for IPC class F04C 28/02
Total number of patents in this class: 158
10-year publication summary
|
13
|
13
|
16
|
12
|
11
|
11
|
18
|
7
|
11
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Atlas Copco Airpower, naamloze vennootschap | 915 |
13 |
| Ateliers Busch SA | 53 |
11 |
| Bitzer Kuehlmaschinenbau GmbH | 140 |
6 |
| Copeland LP | 656 |
6 |
| Kaeser KOMPRESSOREN SE | 166 |
5 |
| Leybold GmbH | 293 |
5 |
| LG Electronics Inc. | 69257 |
4 |
| Mitsubishi Electric Corporation | 43934 |
4 |
| Edwards Limited | 764 |
4 |
| Denso Corporation | 23338 |
3 |
| Life Technologies Corporation | 3068 |
3 |
| Danfoss Commercial Compressors | 88 |
3 |
| Gardner Denver Deutschland GmbH | 58 |
3 |
| GREE Electric Appliances, Inc. of Zhuhai | 3007 |
3 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1334 |
3 |
| Toshiba Carrier Corporation | 567 |
3 |
| Pfeiffer Vacuum | 153 |
3 |
| Enersize OY | 11 |
3 |
| Agilent Technologies, Inc. | 2744 |
2 |
| Adixen Vacuum Products | 19 |
2 |
| Other owners | 69 |