- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F22D - Preheating, or accumulating preheated, feed-water for steam generationfeed-water supply for steam generationcontrolling water level for steam generationauxiliary devices for promoting water circulation within steam boilers
- F22D 1/12 - Control devices, e.g. for regulating steam temperature
Patent holdings for IPC class F22D 1/12
Total number of patents in this class: 38
10-year publication summary
|
9
|
3
|
7
|
2
|
5
|
0
|
1
|
0
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| IHI Corporation | 3438 |
3 |
| Siemens AG | 24477 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 8725 |
2 |
| General Electric Technology GmbH | 1369 |
2 |
| Mitsubishi Hitachi Power Systems, Ltd. | 993 |
2 |
| Skavis Corporation | 12 |
2 |
| Mitsubishi Power, Ltd. | 1762 |
2 |
| Mitsubishi Power Americas, Inc. | 57 |
2 |
| Siemens Energy Global GmbH & Co. KG | 2969 |
2 |
| General Electric Company | 13793 |
1 |
| Hitachi, Ltd. | 15495 |
1 |
| Koninklijke Philips Electronics N.V. | 9618 |
1 |
| Alstom Technology Ltd | 1107 |
1 |
| Uop LLC | 4244 |
1 |
| Siemens Energy, Inc. | 1690 |
1 |
| Air Products and Chemicals, Inc. | 1424 |
1 |
| Bloom Energy Corporation | 660 |
1 |
| Catalytic Industrial Group Inc. | 17 |
1 |
| Electric Power Research Institute, Inc. | 212 |
1 |
| NETZSCH Trockenmahltechnik GmbH | 33 |
1 |
| Other owners | 8 |