- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F22B - Methods of steam generation; steam boilers
- F22B 21/30 - Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from water tubes of form other than straight or substantially straight bent in U-loop form
Patent holdings for IPC class F22B 21/30
Total number of patents in this class: 9
10-year publication summary
1
|
1
|
0
|
0
|
0
|
2
|
0
|
1
|
0
|
0
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
INO Takayuki | 3 |
2 |
Mitsubishi Heavy Industries, Ltd. | 8217 |
1 |
Rolls-Royce PLC | 2944 |
1 |
Alfa Laval Olmi S.p.A | 22 |
1 |
Casale SA | 572 |
1 |
Martin GmbH fur Umwelt-und Energietechnik | 50 |
1 |
Rolls-Royce Power Engineering plc | 24 |
1 |
Simoneau P.I. Inc. | 14 |
1 |
Other owners | 0 |