- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F22B - Methods of steam generation; steam boilers
- F22B 35/00 - Control systems for steam boilers
Patent holdings for IPC class F22B 35/00
Total number of patents in this class: 327
10-year publication summary
|
33
|
17
|
18
|
22
|
17
|
24
|
16
|
24
|
17
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Miura Co., Ltd. | 287 |
28 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
11 |
| IHI Corporation | 3268 |
10 |
| GE Infrastructure Technology, LLC | 5873 |
10 |
| Mitsubishi Power, Ltd. | 1680 |
9 |
| Siemens AG | 24990 |
8 |
| Electric Power Development Co., Ltd. | 73 |
8 |
| Skavis Corporation | 13 |
8 |
| Emerson Process Management Power & Water Solutions, Inc. | 126 |
7 |
| Ice Thermal Harvesting, LLC | 68 |
7 |
| NYK Trading Corporation | 7 |
5 |
| Alstom Technology Ltd | 1196 |
4 |
| UTC Fire & Security Corporation | 139 |
4 |
| Siemens Energy Global GmbH & Co. KG | 2775 |
4 |
| Hitachi, Ltd. | 16452 |
3 |
| Idemitsu Kosan Co., Ltd. | 3995 |
3 |
| Altria Client Services LLC | 1866 |
3 |
| Foster Wheeler Energia Oy | 53 |
3 |
| GE-Hitachi Nuclear Energy Americas LLC | 406 |
3 |
| General Electric Technology GmbH | 1657 |
3 |
| Other owners | 186 |