- 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 28/26 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves using bypass channels
Patent holdings for IPC class F04C 28/26
Total number of patents in this class: 249
10-year publication summary
14
|
18
|
21
|
35
|
17
|
23
|
12
|
20
|
15
|
4
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
LG Electronics Inc. | 69257 |
47 |
Copeland LP | 656 |
23 |
Daikin Industries, Ltd. | 9495 |
11 |
Guangdong Meizhi Compressor Co., Ltd. | 157 |
11 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
10 |
Edwards Limited | 764 |
10 |
Mitsubishi Electric Corporation | 43934 |
8 |
Danfoss Commercial Compressors | 88 |
8 |
Samsung Electronics Co., Ltd. | 131630 |
7 |
GREE Electric Appliances, Inc. of Zhuhai | 3007 |
6 |
Hitachi Industrial Equipment Systems Co., Ltd. | 1334 |
6 |
Panasonic Corporation | 20786 |
4 |
Trane International Inc. | 1123 |
4 |
Hitachi-johnson Controls Air Conditioning, Inc. | 499 |
4 |
Pfeiffer Vacuum | 153 |
4 |
Carrier Corporation | 4759 |
3 |
Johnson Controls Technology Company | 1522 |
3 |
Atlas Copco Airpower, naamloze vennootschap | 915 |
3 |
Hanon Systems | 1632 |
3 |
Oerlikon Leybold Vacuum GmbH | 117 |
3 |
Other owners | 71 |