- 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: 111
10-year publication summary
9
|
11
|
3
|
4
|
7
|
9
|
4
|
6
|
2
|
4
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Mitsubishi Heavy Industries, Ltd. | 8217 |
4 |
Mitsubishi Hitachi Power Systems, Ltd. | 999 |
4 |
MHI Plant Corporation | 4 |
4 |
Jiangsu Dongjiu Heavy Industry Co. Ltd | 10 |
4 |
Mitsubishi Heavy Industries Environmental & Chemical Engineering Co., Ltd. | 122 |
3 |
Mitsubishi Power, Ltd. | 1680 |
3 |
Andritz Inc. | 344 |
2 |
Emerson Process Management Power & Water Solutions, Inc. | 126 |
2 |
Foster Wheeler Energia Oy | 53 |
2 |
Hitachi Zosen Corporation | 609 |
2 |
Novelis Inc. | 130 |
2 |
POET Research, Inc. | 240 |
2 |
Nanjing Changrong Acoustic Inc. | 7 |
2 |
Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 2856 |
2 |
Shenzhen Energy Environmental Engineering Co., Ltd | 75 |
2 |
General Electric Company | 18133 |
1 |
Siemens AG | 24990 |
1 |
Shell Internationale Research Maatschappij B.V. | 3792 |
1 |
Hitachi, Ltd. | 16452 |
1 |
Alstom Technology Ltd | 1196 |
1 |
Other owners | 66 |