- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F02C - Gas-turbine plantsair intakes for jet-propulsion plantscontrolling fuel supply in air-breathing jet-propulsion plants
- F02C 9/18 - Control of working fluid flow by bleeding, by-passing or acting on variable working fluid interconnections between turbines or compressors or their stages
Patent holdings for IPC class F02C 9/18
Total number of patents in this class: 1262
10-year publication summary
|
161
|
189
|
158
|
127
|
144
|
76
|
67
|
79
|
67
|
41
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9297 |
271 |
| General Electric Company | 13829 |
126 |
| Pratt & Whitney Canada Corp. | 4602 |
124 |
| Safran Aircraft Engines | 6237 |
96 |
| GE Infrastructure Technology, LLC | 6192 |
72 |
| Hamilton Sundstrand Corporation | 4832 |
49 |
| Rolls-Royce PLC | 3047 |
48 |
| Rolls-Royce North American Technologies, Inc. | 1160 |
27 |
| Mitsubishi Heavy Industries, Ltd. | 8647 |
26 |
| Mitsubishi Power, Ltd. | 1757 |
24 |
| SNECMA S.A. | 1145 |
22 |
| The Boeing Company | 20013 |
17 |
| Honeywell International Inc. | 13564 |
15 |
| Siemens AG | 24561 |
14 |
| Mitsubishi Hitachi Power Systems, Ltd. | 993 |
14 |
| Snecma | 1065 |
13 |
| GE Aviation Systems LLC | 581 |
11 |
| Rolls-Royce Corporation | 1726 |
11 |
| United Technologies Corporation | 2247 |
10 |
| Rolls-Royce Deutschland Ltd & Co KG | 808 |
9 |
| Other owners | 263 |