- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F01D - Non-positive-displacement machines or engines, e.g. steam turbines
- F01D 5/03 - Annular blade-carrying members having blades on the inner periphery of the annulus and extending inwardly radially, i.e. inverted rotors
Patent holdings for IPC class F01D 5/03
Total number of patents in this class: 61
10-year publication summary
|
2
|
2
|
2
|
7
|
23
|
7
|
4
|
2
|
2
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| General Electric Company | 18133 |
22 |
| Pratt & Whitney Canada Corp. | 4215 |
8 |
| Safran Aircraft Engines | 5739 |
6 |
| Intelligent Power Generation Limited | 8 |
4 |
| Rtx Corporation | 8674 |
3 |
| Honeywell International Inc. | 13799 |
2 |
| SNECMA S.A. | 1160 |
1 |
| United Technologies Corporation | 2328 |
1 |
| Schaeffler Technologies AG & Co. KG | 8880 |
1 |
| Tsinghua University | 5426 |
1 |
| C-Power Limited | 2 |
1 |
| GE Avio S.r.l. | 223 |
1 |
| Jet-age Wind Inc. | 2 |
1 |
| Louisiana Tech Research Corporation | 51 |
1 |
| Louisiana Tech Research Foundation; a Division of Louisiana Tech University Foundation, Inc. | 2 |
1 |
| Orbis Wheels, Inc. | 16 |
1 |
| Rheinisch-westfalische Technische Hochschule Aachen | 132 |
1 |
| Rolls-Royce Corporation | 1686 |
1 |
| Safran Aero Boosters SA | 180 |
1 |
| Safran Helicopter Engines | 676 |
1 |
| Other owners | 2 |