- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F02C - Gas-turbine plants; air intakes for jet-propulsion plants; controlling 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: 1181
10-year publication summary
|
114
|
161
|
189
|
158
|
127
|
143
|
75
|
66
|
76
|
24
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 8674 |
255 |
| General Electric Company | 18133 |
113 |
| Pratt & Whitney Canada Corp. | 4215 |
111 |
| Safran Aircraft Engines | 5739 |
87 |
| GE Infrastructure Technology, LLC | 5873 |
68 |
| Hamilton Sundstrand Corporation | 4525 |
48 |
| Rolls-Royce PLC | 2944 |
45 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
23 |
| Mitsubishi Power, Ltd. | 1680 |
23 |
| SNECMA S.A. | 1160 |
22 |
| Rolls-Royce North American Technologies, Inc. | 1079 |
22 |
| The Boeing Company | 19843 |
17 |
| Honeywell International Inc. | 13799 |
15 |
| Siemens AG | 24990 |
14 |
| Mitsubishi Hitachi Power Systems, Ltd. | 999 |
14 |
| Snecma | 1065 |
13 |
| United Technologies Corporation | 2328 |
12 |
| GE Aviation Systems LLC | 569 |
11 |
| Rolls-Royce Corporation | 1686 |
10 |
| Rolls-Royce Deutschland Ltd & Co KG | 765 |
9 |
| Other owners | 249 |