- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F01D - Non-positive-displacement machines or engines, e.g. steam turbines
- F01D 5/12 - Blades
Patent holdings for IPC class F01D 5/12
Total number of patents in this class: 500
10-year publication summary
|
123
|
107
|
51
|
27
|
37
|
28
|
19
|
13
|
12
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9094 |
93 |
| United Technologies Corporation | 2259 |
56 |
| General Electric Company | 17783 |
50 |
| Safran Aircraft Engines | 6031 |
26 |
| Rolls-Royce PLC | 2988 |
23 |
| GE Infrastructure Technology, LLC | 6114 |
18 |
| Siemens Energy, Inc. | 1731 |
17 |
| Pratt & Whitney Canada Corp. | 4438 |
14 |
| Rolls-Royce Corporation | 1719 |
10 |
| Mitsubishi Power, Ltd. | 1735 |
10 |
| MTU Aero Engines AG | 652 |
8 |
| Honeywell International Inc. | 14012 |
7 |
| Solar Turbines Incorporated | 459 |
7 |
| Siemens Energy Global GmbH & Co. KG | 2828 |
7 |
| Siemens AG | 24573 |
6 |
| BorgWarner Inc. | 2587 |
5 |
| Invuity, Inc. | 156 |
5 |
| Rolls-Royce North American Technologies, Inc. | 1133 |
5 |
| SNECMA S.A. | 1150 |
4 |
| Chromalloy Gas Turbine LLC | 71 |
3 |
| Other owners | 126 |