- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F23R - Generating combustion products of high pressure or high velocity, e.g. gas-turbine combustion chambers
- F23R 3/04 - Air inlet arrangements
Patent holdings for IPC class F23R 3/04
Total number of patents in this class: 464
10-year publication summary
|
49
|
36
|
53
|
31
|
21
|
15
|
22
|
14
|
18
|
11
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 10055 |
82 |
| General Electric Company | 13894 |
74 |
| GE Infrastructure Technology, LLC | 6169 |
48 |
| Pratt & Whitney Canada Corp. | 5464 |
27 |
| Siemens AG | 24050 |
17 |
| Rolls-Royce Corporation | 1676 |
13 |
| Safran Aircraft Engines | 6664 |
13 |
| Rolls-Royce PLC | 3222 |
12 |
| Mitsubishi Power, Ltd. | 1830 |
12 |
| Siemens Energy, Inc. | 1684 |
11 |
| Doosan Heavy Industries & Construction Co., Ltd. | 580 |
11 |
| Ansaldo Energia Switzerland AG | 270 |
10 |
| SNECMA S.A. | 1147 |
8 |
| ExxonMobil Upstream Research Company | 2311 |
8 |
| Siemens Energy Global GmbH & Co. KG | 3328 |
8 |
| Mitsubishi Heavy Industries, Ltd. | 9099 |
7 |
| Rolls-Royce North American Technologies, Inc. | 1127 |
7 |
| Honeywell International Inc. | 12783 |
6 |
| King Fahd University of Petroleum and Minerals | 1563 |
6 |
| Rolls-Royce Deutschland Ltd & Co KG | 856 |
5 |
| Other owners | 79 |