- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F22B - Methods of steam generation; steam boilers
- F22B 21/26 - 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 helically, i.e. coiled
Patent holdings for IPC class F22B 21/26
Total number of patents in this class: 16
10-year publication summary
|
2
|
4
|
0
|
5
|
2
|
2
|
1
|
3
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
2 |
| Alfa Laval Corporate AB | 1265 |
2 |
| Osaka Gas Co., Ltd. | 312 |
2 |
| Raytheon Company | 8535 |
1 |
| A. o. Smith Corporation | 204 |
1 |
| BWXT Mpower, Inc. | 157 |
1 |
| Cenovus Energy Inc. | 321 |
1 |
| Enviro Power, Inc. | 8 |
1 |
| Doosan Fuel Cell America, Inc. | 33 |
1 |
| HTP, Inc. | 2 |
1 |
| EMSA Enerji Madencilik Sanayi ve Ticaret Anonim Sirketi | 1 |
1 |
| Palms Institute Pty Ltd | 1 |
1 |
| Hyaxiom, Inc. | 90 |
1 |
| Other owners | 0 |