- 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 7/143 - Cooling of plants of fluids in the plant of working fluid before or between the compressor stages
Patent holdings for IPC class F02C 7/143
Total number of patents in this class: 456
10-year publication summary
|
48
|
48
|
42
|
55
|
43
|
43
|
24
|
24
|
21
|
6
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 8674 |
47 |
| GE Infrastructure Technology, LLC | 5873 |
35 |
| General Electric Company | 18133 |
28 |
| Siemens AG | 24990 |
20 |
| Pratt & Whitney Canada Corp. | 4215 |
15 |
| Hitachi, Ltd. | 16452 |
14 |
| Rolls-Royce North American Technologies, Inc. | 1079 |
14 |
| BJ Energy Solutions, LLC (formerly TES Asset Acquisition, LLC) | 196 |
13 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
12 |
| Mitsubishi Power, Ltd. | 1680 |
12 |
| 8 Rivers Capital, LLC | 224 |
10 |
| Rolls-Royce Corporation | 1686 |
9 |
| Nuovo Pignone Tecnologie S.r.l. | 789 |
9 |
| Powerphase International, LLC | 39 |
9 |
| Kobe Steel, Ltd. | 912 |
8 |
| Alstom Technology Ltd | 1196 |
7 |
| Aaf Ltd. | 19 |
6 |
| IHI Corporation | 3268 |
6 |
| Nuovo Pignone SRL | 204 |
6 |
| Shell Internationale Research Maatschappij B.V. | 3792 |
5 |
| Other owners | 171 |