- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F22B - Methods of steam generationsteam boilers
- F22B 37/50 - Devices or arrangements for removing water, minerals or sludge from boilers for draining or expelling water
Patent holdings for IPC class F22B 37/50
Total number of patents in this class: 46
10-year publication summary
|
2
|
4
|
2
|
5
|
4
|
1
|
2
|
3
|
2
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BSH Hausgeräte GmbH | 5518 |
6 |
| Siemens AG | 24520 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 31221 |
2 |
| Ansaldo Energia S.p.A. | 130 |
2 |
| Fccl Partnership | 38 |
2 |
| Guangdong University of Technology | 572 |
2 |
| IFP Energies Nouvelles | 2943 |
2 |
| International Paper Company | 791 |
2 |
| Toshiba Plant Systems & Services Corporation | 33 |
2 |
| Enogia | 17 |
2 |
| Siemens Energy Global GmbH & Co. KG | 2941 |
2 |
| LG Electronics Inc. | 72807 |
1 |
| Mitsubishi Heavy Industries, Ltd. | 8694 |
1 |
| Panasonic Corporation | 20136 |
1 |
| Robert Bosch GmbH | 42632 |
1 |
| Whirlpool Corporation | 4406 |
1 |
| Chevron U.S.A. Inc. | 3945 |
1 |
| Airgas, Inc. | 148 |
1 |
| Automation Tech, Inc. | 2 |
1 |
| Cimarron Energy, Inc. | 21 |
1 |
| Other owners | 10 |