- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F23R - Generating combustion products of high pressure or high velocity, e.g. gas-turbine combustion chambers
- F23R 3/46 - Combustion chambers comprising an annular arrangement of flame tubes within a common annular casing or within individual casings
Patent holdings for IPC class F23R 3/46
Total number of patents in this class: 240
10-year publication summary
|
24
|
50
|
26
|
29
|
13
|
9
|
7
|
9
|
6
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| GE Infrastructure Technology, LLC | 6182 |
49 |
| Siemens AG | 24532 |
22 |
| Mitsubishi Power, Ltd. | 1749 |
18 |
| General Electric Company | 17071 |
17 |
| Siemens Energy, Inc. | 1698 |
14 |
| Doosan Heavy Industries & Construction Co., Ltd. | 581 |
11 |
| Mitsubishi Heavy Industries, Ltd. | 8582 |
10 |
| Ansaldo Energia Switzerland AG | 278 |
10 |
| SNECMA S.A. | 1145 |
9 |
| Pratt & Whitney Canada Corp. | 4481 |
9 |
| Siemens Energy Global GmbH & Co. KG | 2877 |
9 |
| Rtx Corporation | 9252 |
9 |
| Kawasaki Heavy Industries, Limited | 1606 |
5 |
| United Technologies Corporation | 2249 |
4 |
| Rolls-Royce PLC | 3020 |
3 |
| Woodward, Inc. | 640 |
3 |
| Toshiba Energy Systems & Solutions Corp. | 1053 |
3 |
| Doosan Enerbility Co., Ltd. | 215 |
3 |
| GE Avio S.r.l. | 263 |
2 |
| Rolls-Royce Deutschland Ltd & Co KG | 804 |
2 |
| Other owners | 28 |