- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F23C - Methods or apparatus for combustion using fluid fuel or solid fuel suspended in air
- F23C 9/06 - Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for completing combustion
Patent holdings for IPC class F23C 9/06
Total number of patents in this class: 71
10-year publication summary
|
6
|
7
|
10
|
10
|
3
|
4
|
6
|
10
|
4
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ClearSign Technologies Corporation | 47 |
7 |
| Honeywell International Inc. | 14021 |
5 |
| Korea Institute of Industrial Technology | 1007 |
5 |
| Uop LLC | 4188 |
3 |
| Siemens AG | 24565 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 8538 |
2 |
| Fives North American Combustion, Inc. | 47 |
2 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3599 |
2 |
| Praxair Technology, Inc. | 1330 |
2 |
| Webster Combustion Technology LLC | 7 |
2 |
| Ecoflam Bruciatori S.p.A. | 11 |
2 |
| Zhejiang Xianchuang Energy Technology Co., Ltd | 3 |
2 |
| Siemens Energy Global GmbH & Co. KG | 2829 |
2 |
| Shanghai Yuanhan Energy & Chemical Technology Co., Ltd. | 7 |
2 |
| ExxonMobil Upstream Research Company | 2454 |
1 |
| Futurenergy Pty Ltd | 1 |
1 |
| Gas Technology Institute | 358 |
1 |
| GasTech Engineering LLC, FORMERLY GasTech Engineering Corp. | 6 |
1 |
| Giacomini S.p.A. | 75 |
1 |
| Guangdong University of Technology | 528 |
1 |
| Other owners | 25 |