- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F23R - Generating combustion products of high pressure or high velocity, e.g. gas-turbine combustion chambers
- F23R 3/44 - Combustion chambers comprising a tubular flame tube within a tubular casing
Patent holdings for IPC class F23R 3/44
Total number of patents in this class: 97
10-year publication summary
|
12
|
7
|
6
|
3
|
7
|
6
|
3
|
3
|
2
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 10102 |
12 |
| GE Infrastructure Technology, LLC | 6171 |
10 |
| Mitsubishi Heavy Industries, Ltd. | 9128 |
6 |
| Mitsubishi Power, Ltd. | 1833 |
6 |
| General Electric Company | 13899 |
4 |
| Siemens AG | 24029 |
3 |
| Pratt & Whitney Canada Corp. | 5479 |
3 |
| Rolls-Royce PLC | 3221 |
3 |
| Siemens Energy, Inc. | 1685 |
3 |
| Ansaldo Energia Switzerland AG | 270 |
3 |
| Doosan Heavy Industries & Construction Co., Ltd. | 580 |
3 |
| Safran Aircraft Engines | 6694 |
3 |
| Toshiba Energy Systems & Solutions Corp. | 1152 |
3 |
| Bloom Engineering Company, Inc. | 24 |
2 |
| IFP Energies Nouvelles | 3098 |
2 |
| Rmv Tech Oy | 3 |
2 |
| Universite Libre de Bruxelles | 314 |
2 |
| Man Energy Solutions SE | 104 |
2 |
| Mitis S.A. | 3 |
2 |
| H2 IP UK Limited | 44 |
2 |
| Other owners | 21 |