- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F22B - Methods of steam generationsteam boilers
- F22B 9/00 - Steam boilers of fire-tube type, i.e. the flue gas from a combustion chamber outside the boiler body flowing through tubes built-in in the boiler body
Patent holdings for IPC class F22B 9/00
Total number of patents in this class: 19
10-year publication summary
|
3
|
1
|
2
|
0
|
1
|
5
|
0
|
2
|
2
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| DRI-STEEM Corporation | 45 |
3 |
| GasTech Engineering LLC, FORMERLY GasTech Engineering Corp. | 6 |
3 |
| Maschinenwerk Misselhorn MWM GmbH | 3 |
2 |
| Washington University | 1765 |
2 |
| Siemens AG | 23956 |
1 |
| ConocoPhillips Surmont Partnership | 10 |
1 |
| Forbes Marshall Pvt. Ltd | 37 |
1 |
| Gas Technology Institute | 332 |
1 |
| Preferred Utilities Manufacturing Corporation | 6 |
1 |
| Carmen Lindner | 1 |
1 |
| Lutz Lindner | 1 |
1 |
| Siemens Energy Global GmbH & Co. KG | 3470 |
1 |
| Universal Dynamics Inovasyon ve Teknoloji Anonim Sirketi | 2 |
1 |
| Other owners | 0 |