- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F23J - Removal or treatment of combustion products or combustion residues; flues
- F23J 15/00 - Arrangements of devices for treating smoke or fumes
Patent holdings for IPC class F23J 15/00
Total number of patents in this class: 727
10-year publication summary
45
|
58
|
56
|
55
|
51
|
45
|
41
|
20
|
41
|
12
|
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 |
66 |
Mitsubishi Power, Ltd. | 1680 |
31 |
Mitsubishi Hitachi Power Systems, Ltd. | 999 |
28 |
General Electric Technology GmbH | 1657 |
25 |
IHI Corporation | 3268 |
21 |
Alstom Technology Ltd | 1196 |
18 |
The Chugoku Electric Power Co., Inc. | 498 |
17 |
Babcock-Hitachi Kabushiki Kaisha | 107 |
15 |
NOx II, Ltd. | 50 |
15 |
L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3515 |
10 |
General Electric Company | 18133 |
8 |
Tokyo Metropolitan University | 101 |
8 |
ARQ Solutions (es), Inc. | 58 |
8 |
The Babcock & Wilcox Company | 184 |
7 |
Membrane Technology and Research, Inc. | 92 |
7 |
S.A. Lhoist Recherche et Developpement | 163 |
7 |
Siemens AG | 24990 |
6 |
Hitachi Zosen Corporation | 609 |
6 |
Doosan Lentjes GmbH | 48 |
5 |
Saudi Arabian Oil Company | 11322 |
5 |
Other owners | 414 |