- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01D - Non-positive-displacement machines or engines, e.g. steam turbines
- F01D 13/00 - Combinations of two or more machines or engines
Patent holdings for IPC class F01D 13/00
Total number of patents in this class: 122
10-year publication summary
|
18
|
16
|
14
|
5
|
18
|
5
|
11
|
7
|
4
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9114 |
20 |
| Pratt & Whitney Canada Corp. | 4445 |
10 |
| General Electric Company | 17794 |
5 |
| Siemens AG | 24568 |
5 |
| Safran Aircraft Engines | 6059 |
5 |
| Safran Helicopter Engines | 728 |
5 |
| Safran Electrical & Power | 614 |
4 |
| Rolls-Royce PLC | 2996 |
3 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3602 |
3 |
| Sikorsky Aircraft Corporation | 1123 |
3 |
| Mitsubishi Power, Ltd. | 1739 |
3 |
| Foret Plasma Labs, LLC | 66 |
2 |
| Green Energy and Technology Sdn. Bhd. | 4 |
2 |
| Mitsubishi Heavy Industries Compressor Corporation | 621 |
2 |
| Rolls-Royce North American Technologies, Inc. | 1139 |
2 |
| Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | 430 |
2 |
| GE Infrastructure Technology, LLC | 6116 |
2 |
| Aurelia Turbines Oy | 10 |
2 |
| Flowserve Pte. Ltd | 369 |
2 |
| Halliburton Energy Services, Inc. | 20449 |
1 |
| Other owners | 39 |