- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F01D - Non-positive-displacement machines or engines, e.g. steam turbines
- F01D 1/26 - Non-positive-displacement machines or engines, e.g. steam turbines characterised by counter-rotating rotors subjected to same working-fluid stream without intermediate stator blades or the like traversed by the working-fluid substantially axially
Patent holdings for IPC class F01D 1/26
Total number of patents in this class: 84
10-year publication summary
|
1
|
6
|
5
|
8
|
15
|
12
|
8
|
7
|
3
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Safran Aircraft Engines | 5739 |
25 |
| General Electric Company | 18133 |
22 |
| Rtx Corporation | 8674 |
10 |
| Pratt & Whitney Canada Corp. | 4215 |
4 |
| Snecma | 1065 |
3 |
| GE Aviation Systems Limited | 257 |
2 |
| Esquare Lab Ltd | 2 |
2 |
| Rolls-Royce PLC | 2944 |
1 |
| Hamilton Sundstrand Corporation | 4525 |
1 |
| Tsinghua University | 5426 |
1 |
| Bepart B.V. | 1 |
1 |
| Danfoss (Tianjin) Ltd. | 83 |
1 |
| Doosan Heavy Industries & Construction Co., Ltd. | 604 |
1 |
| General Electric Technology GmbH | 1657 |
1 |
| Nidec Corporation | 2579 |
1 |
| Reaction Engines Ltd | 46 |
1 |
| Rolls-Royce North American Technologies, Inc. | 1079 |
1 |
| Rosen Swiss AG | 128 |
1 |
| Safran Aero Boosters SA | 180 |
1 |
| Sea-lix AS | 6 |
1 |
| Other owners | 3 |