- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F23L - Supplying air or non-combustible liquids or gases to combustion apparatus in generalvalves or dampers specially adapted for controlling air supply or draught in combustion apparatusinducing draught in combustion apparatustops for chimneys or ventilating shaftsterminals for flues
- F23L 9/06 - Passages or apertures for delivering secondary air for completing combustion of fuel by discharging the air into the fire bed
Patent holdings for IPC class F23L 9/06
Total number of patents in this class: 30
10-year publication summary
|
2
|
2
|
1
|
1
|
5
|
5
|
1
|
4
|
3
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Fire Chief Industries LLC | 7 |
4 |
| Babcock-Hitachi Kabushiki Kaisha | 103 |
2 |
| Tigercat Industries Inc. | 41 |
2 |
| Npi-engineering Oy | 8 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 8647 |
1 |
| Air Products and Chemicals, Inc. | 1401 |
1 |
| Doosan Lentjes GmbH | 47 |
1 |
| Gas Technology Institute | 354 |
1 |
| Institute of Engineering Thermophysics, Chinese Academy of Sciences | 51 |
1 |
| JFE Steel Corporation | 6767 |
1 |
| Johns Manville | 955 |
1 |
| Mitsubishi Hitachi Power Systems, Ltd. | 993 |
1 |
| ThyssenKrupp Industrial Solutions AG | 636 |
1 |
| Valmet Technologies Oy | 286 |
1 |
| MME Engineering E.U. | 3 |
1 |
| Ecofront Co.,Ltd | 2 |
1 |
| Enki Stove S.r.l. | 1 |
1 |
| Entreprise Ronot | 1 |
1 |
| Sinensys | 1 |
1 |
| Harris Multi Jet Burner Ltd | 2 |
1 |
| Other owners | 4 |