- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01D - Non-positive-displacement machines or engines, e.g. steam turbines
- F01D 5/14 - Form or construction
Patent holdings for IPC class F01D 5/14
Total number of patents in this class: 4399
10-year publication summary
|
472
|
360
|
377
|
335
|
405
|
259
|
213
|
200
|
212
|
112
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9429 |
730 |
| Safran Aircraft Engines | 6303 |
455 |
| General Electric Company | 13827 |
364 |
| GE Infrastructure Technology, LLC | 6247 |
355 |
| Pratt & Whitney Canada Corp. | 4817 |
228 |
| United Technologies Corporation | 2242 |
165 |
| Rolls-Royce PLC | 3127 |
164 |
| Siemens AG | 24421 |
129 |
| Rolls-Royce Corporation | 1757 |
93 |
| MTU Aero Engines AG | 689 |
90 |
| SNECMA S.A. | 1148 |
85 |
| Mitsubishi Heavy Industries, Ltd. | 8777 |
75 |
| Snecma | 1064 |
69 |
| Siemens Energy Global GmbH & Co. KG | 3007 |
54 |
| IHI Corporation | 3447 |
53 |
| Mitsubishi Power, Ltd. | 1779 |
53 |
| Siemens Energy, Inc. | 1707 |
52 |
| Rolls-Royce North American Technologies, Inc. | 1169 |
48 |
| Honeywell International Inc. | 13554 |
45 |
| Rolls-Royce Deutschland Ltd & Co KG | 818 |
44 |
| Other owners | 1048 |