- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- 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: 123
10-year publication summary
15
|
18
|
16
|
14
|
5
|
18
|
5
|
11
|
7
|
2
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Rtx Corporation | 8674 |
20 |
Pratt & Whitney Canada Corp. | 4215 |
8 |
General Electric Company | 18133 |
5 |
Siemens AG | 24990 |
5 |
Safran Aircraft Engines | 5739 |
5 |
Safran Helicopter Engines | 676 |
5 |
Safran Electrical & Power | 507 |
4 |
Rolls-Royce PLC | 2944 |
3 |
L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3515 |
3 |
Sikorsky Aircraft Corporation | 1150 |
3 |
Mitsubishi Power, Ltd. | 1680 |
3 |
Foret Plasma Labs, LLC | 85 |
2 |
Green Energy and Technology Sdn. Bhd. | 4 |
2 |
Mitsubishi Heavy Industries Compressor Corporation | 613 |
2 |
Nidec Corporation | 2579 |
2 |
Rolls-Royce North American Technologies, Inc. | 1079 |
2 |
Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | 396 |
2 |
GE Infrastructure Technology, LLC | 5873 |
2 |
Aurelia Turbines Oy | 10 |
2 |
Flowserve Pte. Ltd | 216 |
2 |
Other owners | 41 |