- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F01D - Non-positive-displacement machines or engines, e.g. steam turbines
- F01D 25/16 - Arrangement of bearings; Supporting or mounting bearings in casings
Patent holdings for IPC class F01D 25/16
Total number of patents in this class: 2474
10-year publication summary
|
260
|
319
|
292
|
299
|
245
|
223
|
183
|
141
|
97
|
20
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 8674 |
473 |
| Safran Aircraft Engines | 5739 |
233 |
| General Electric Company | 18133 |
185 |
| Pratt & Whitney Canada Corp. | 4215 |
182 |
| BorgWarner Inc. | 2604 |
155 |
| Rolls-Royce PLC | 2944 |
55 |
| IHI Corporation | 3268 |
53 |
| SNECMA S.A. | 1160 |
50 |
| United Technologies Corporation | 2328 |
45 |
| Siemens AG | 24990 |
42 |
| Snecma | 1065 |
35 |
| Honeywell International Inc. | 13799 |
29 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
29 |
| JPMorgan Chase Bank, National Association | 10964 |
28 |
| NTN Corporation | 5008 |
27 |
| Rolls-Royce Corporation | 1686 |
26 |
| Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. | 699 |
26 |
| MTU Aero Engines AG | 622 |
24 |
| Hamilton Sundstrand Corporation | 4525 |
21 |
| Nuovo Pignone Tecnologie S.r.l. | 789 |
21 |
| Other owners | 735 |