- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F23J - Removal or treatment of combustion products or combustion residues; flues
- F23J 15/04 - Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
Patent holdings for IPC class F23J 15/04
Total number of patents in this class: 307
10-year publication summary
|
31
|
26
|
37
|
21
|
28
|
17
|
23
|
23
|
20
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| General Electric Technology GmbH | 1657 |
19 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
17 |
| Alstom Technology Ltd | 1196 |
11 |
| Mitsubishi Power, Ltd. | 1680 |
9 |
| Siemens AG | 24990 |
7 |
| Mitsubishi Hitachi Power Systems, Ltd. | 999 |
6 |
| NOx II, Ltd. | 50 |
6 |
| Evonik Degussa GmbH | 1574 |
5 |
| 8 Rivers Capital, LLC | 224 |
5 |
| Toshiba Corporation | 12017 |
4 |
| The Babcock & Wilcox Company | 184 |
4 |
| GEA Process Engineering A/S | 150 |
4 |
| Ecolab USA Inc. | 5190 |
3 |
| Edwards Limited | 764 |
3 |
| Kurita Water Industries Ltd. | 1110 |
3 |
| Linde Aktiengesellschaft | 1600 |
3 |
| Marine Global Holding AS | 3 |
3 |
| Sargas AS | 9 |
3 |
| Statoil Petroleum AS | 555 |
3 |
| Midwest Energy Emissions Corp. | 26 |
3 |
| Other owners | 186 |