- 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 3/113 - Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor with two or more rotors connected by power transmission with variable power transmission between rotors
Patent holdings for IPC class F02C 3/113
Total number of patents in this class: 135
10-year publication summary
|
15
|
8
|
8
|
14
|
14
|
18
|
27
|
11
|
10
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rolls-Royce PLC | 2944 |
27 |
| Rtx Corporation | 8674 |
27 |
| Pratt & Whitney Canada Corp. | 4215 |
16 |
| Safran Helicopter Engines | 676 |
11 |
| General Electric Company | 18133 |
9 |
| Safran Aircraft Engines | 5739 |
8 |
| Raytheon Technologies Corporation | 332 |
6 |
| Rolls-Royce Deutschland Ltd & Co KG | 765 |
5 |
| Rolls-Royce North American Technologies, Inc. | 1079 |
5 |
| United Technologies Corporation | 2328 |
3 |
| Nuovo Pignone Tecnologie S.r.l. | 789 |
3 |
| Siemens AG | 24990 |
2 |
| Rolls-Royce Corporation | 1686 |
2 |
| SNECMA S.A. | 1160 |
1 |
| Airbus Helicopters | 984 |
1 |
| Hitachi, Ltd. | 16452 |
1 |
| Dana Limited | 248 |
1 |
| GE Avio S.r.l. | 223 |
1 |
| IHI Corporation | 3268 |
1 |
| Leonardo S.p.A. | 605 |
1 |
| Other owners | 4 |