- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F22B - Methods of steam generationsteam boilers
- F22B 31/04 - Heat supply by installation of two or more combustion apparatus, e.g. of separate combustion apparatus for the boiler and the superheater respectively
Patent holdings for IPC class F22B 31/04
Total number of patents in this class: 34
10-year publication summary
|
2
|
3
|
3
|
5
|
4
|
1
|
1
|
0
|
3
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Valmet Technologies Oy | 286 |
4 |
| Siemens AG | 24562 |
3 |
| Stork Thermeq B.V. | 8 |
3 |
| Washington University | 1589 |
3 |
| LG Chem, Ltd. | 17526 |
2 |
| Andritz Oy | 282 |
2 |
| Saudi Arabian Oil Company | 12785 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 8608 |
1 |
| Aramco Services Company | 3894 |
1 |
| Ecoenergy Gesellschaft fur Energie-und Umwelttechnik mbH | 6 |
1 |
| Fives North American Combustion, Inc. | 45 |
1 |
| Guangdong University of Technology | 555 |
1 |
| INEOS USA LLC | 51 |
1 |
| PCL Industrial Services, Inc. | 2 |
1 |
| Renmatix, Inc. | 131 |
1 |
| Sener, Ingenieria y Sistemas, S.A. | 47 |
1 |
| Vysoka Skola Banska - Technicka Univerzita Ostrava | 35 |
1 |
| Babcock & Wilcox Vølund ApS | 13 |
1 |
| Stephen William John Grant | 1 |
1 |
| Zhejiang Liju Boiler Co., Ltd. | 3 |
1 |
| Other owners | 2 |