- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F23J - Removal or treatment of combustion products or combustion residuesflues
- F23J 11/04 - Devices for conducting smoke or fumes, e.g. flues in locomotivesDevices for conducting smoke or fumes, e.g. flues in road vehiclesDevices for conducting smoke or fumes, e.g. flues in ships
Patent holdings for IPC class F23J 11/04
Total number of patents in this class: 9
10-year publication summary
|
1
|
1
|
0
|
0
|
0
|
0
|
3
|
1
|
2
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Caterpillar Inc. | 10267 |
3 |
| Marathon Petroleum Company LP | 413 |
2 |
| Rolls-Royce North American Technologies, Inc. | 1129 |
1 |
| Webasto SE | 1189 |
1 |
| Mackwell & Co. Limited | 4 |
1 |
| Carbon Ridge, Inc. | 2 |
1 |
| Other owners | 0 |