- 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 28/06 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for stopping, starting, idling or no-load operation
Patent holdings for IPC class F04C 28/06
Total number of patents in this class: 274
10-year publication summary
|
29
|
19
|
29
|
33
|
27
|
27
|
15
|
10
|
10
|
5
|
| 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 |
22 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1334 |
20 |
| Copeland LP | 656 |
11 |
| LG Electronics Inc. | 69257 |
10 |
| Toyota Industries Corporation | 1010 |
9 |
| Illinois Tool Works Inc. | 11152 |
8 |
| Denso Corporation | 23338 |
8 |
| Edwards Limited | 764 |
8 |
| Mitsubishi Electric Corporation | 43934 |
7 |
| GREE Green Refrigeration Technology Center Co., Ltd. of Zhuhai | 155 |
6 |
| Ingersoll-Rand Industrial U.S., Inc. | 498 |
6 |
| Carrier Corporation | 4759 |
5 |
| Ateliers Busch SA | 53 |
5 |
| GREE Electric Appliances, Inc. of Zhuhai | 3007 |
5 |
| Lennox Industries Inc. | 1088 |
5 |
| Daikin Industries, Ltd. | 9495 |
4 |
| Oerlikon Leybold Vacuum GmbH | 117 |
4 |
| Pierburg Pump Technology GmbH | 305 |
4 |
| Vhit S.p.A. | 64 |
4 |
| Eaton Intelligent Power Limited | 6113 |
4 |
| Other owners | 119 |