- 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: 147
10-year publication summary
|
8
|
8
|
14
|
14
|
18
|
27
|
11
|
10
|
18
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rolls-Royce PLC | 2988 |
29 |
| Rtx Corporation | 9094 |
29 |
| Pratt & Whitney Canada Corp. | 4438 |
18 |
| Safran Helicopter Engines | 724 |
13 |
| General Electric Company | 17783 |
12 |
| Safran Aircraft Engines | 6031 |
9 |
| Raytheon Technologies Corporation | 234 |
6 |
| Rolls-Royce Deutschland Ltd & Co KG | 795 |
5 |
| Rolls-Royce North American Technologies, Inc. | 1133 |
5 |
| Nuovo Pignone Tecnologie S.r.l. | 855 |
4 |
| Siemens AG | 24573 |
2 |
| United Technologies Corporation | 2259 |
2 |
| Rolls-Royce Corporation | 1719 |
2 |
| SAFRAN S.A. | 571 |
1 |
| SNECMA S.A. | 1150 |
1 |
| Hitachi, Ltd. | 15220 |
1 |
| Dana Limited | 242 |
1 |
| GE Avio S.r.l. | 242 |
1 |
| IHI Corporation | 3358 |
1 |
| Leonardo S.p.A. | 656 |
1 |
| Other owners | 4 |