- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F23J - Removal or treatment of combustion products or combustion residues; flues
- F23J 3/00 - Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
Patent holdings for IPC class F23J 3/00
Total number of patents in this class: 110
10-year publication summary
|
11
|
3
|
4
|
7
|
9
|
4
|
6
|
2
|
5
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Heavy Industries, Ltd. | 8538 |
5 |
| Mitsubishi Hitachi Power Systems, Ltd. | 995 |
4 |
| MHI Plant Corporation | 4 |
4 |
| Jiangsu Dongjiu Heavy Industry Co. Ltd | 10 |
4 |
| Mitsubishi Power, Ltd. | 1737 |
4 |
| Mitsubishi Heavy Industries Environmental & Chemical Engineering Co., Ltd. | 124 |
3 |
| Andritz Inc. | 337 |
2 |
| Emerson Process Management Power & Water Solutions, Inc. | 122 |
2 |
| Foster Wheeler Energia Oy | 49 |
2 |
| Hitachi Zosen Corporation | 621 |
2 |
| POET Research, Inc. | 253 |
2 |
| Diamond Power International, LLC | 61 |
2 |
| Nanjing Changrong Acoustic Inc. | 7 |
2 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3015 |
2 |
| Shenzhen Energy Environmental Engineering Co., Ltd | 75 |
2 |
| General Electric Company | 17789 |
1 |
| Siemens AG | 24565 |
1 |
| Shell Internationale Research Maatschappij B.V. | 3722 |
1 |
| Hitachi, Ltd. | 15226 |
1 |
| Alstom Technology Ltd | 1145 |
1 |
| Other owners | 63 |