- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- 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: 4200
10-year publication summary
|
462
|
511
|
398
|
391
|
347
|
427
|
266
|
214
|
206
|
52
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 8674 |
710 |
| Safran Aircraft Engines | 5739 |
388 |
| GE Infrastructure Technology, LLC | 5873 |
352 |
| General Electric Company | 18133 |
312 |
| Pratt & Whitney Canada Corp. | 4215 |
209 |
| United Technologies Corporation | 2328 |
167 |
| Rolls-Royce PLC | 2944 |
160 |
| Siemens AG | 24990 |
133 |
| Rolls-Royce Corporation | 1686 |
95 |
| MTU Aero Engines AG | 622 |
88 |
| SNECMA S.A. | 1160 |
86 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
74 |
| Snecma | 1065 |
69 |
| IHI Corporation | 3268 |
57 |
| Siemens Energy, Inc. | 1770 |
54 |
| Mitsubishi Power, Ltd. | 1680 |
53 |
| Siemens Energy Global GmbH & Co. KG | 2775 |
52 |
| Honeywell International Inc. | 13799 |
50 |
| Rolls-Royce North American Technologies, Inc. | 1079 |
48 |
| Rolls-Royce Deutschland Ltd & Co KG | 765 |
44 |
| Other owners | 999 |