- 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 11/06 - Arrangements of feed-water pumps for returning condensate to boiler
Patent holdings for IPC class F22D 11/06
Total number of patents in this class: 49
10-year publication summary
|
3
|
4
|
6
|
5
|
4
|
5
|
3
|
7
|
1
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| TLV Co., Ltd. | 334 |
11 |
| Miura Co., Ltd. | 286 |
7 |
| Victor Tokuhan Co., Ltd. | 3 |
3 |
| Condor Technologies, Inc. | 3 |
3 |
| GE Infrastructure Technology, LLC | 6213 |
2 |
| Siemens AG | 24505 |
1 |
| Dalian University of Technology | 1520 |
1 |
| Guangdong University of Technology | 574 |
1 |
| Jinan University | 231 |
1 |
| Kurita Water Industries Ltd. | 1193 |
1 |
| Maxi-therme Inc. | 15 |
1 |
| Mitsubishi Hitachi Power Systems, Ltd. | 993 |
1 |
| Xi'an Jiaotong University | 654 |
1 |
| Samtech Limited | 1 |
1 |
| Toshiba Energy Systems & Solutions Corp. | 1077 |
1 |
| HeNan Polytechnic University | 98 |
1 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6270 |
1 |
| Samtech Limited | 1 |
1 |
| Datang Environment Industry Group Co., Ltd. | 11 |
1 |
| China Energy Engineering Group Zhejiang Eleteric Power Design Institute Co., Ltd. | 1 |
1 |
| Other owners | 8 |