- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01D - Non-positive-displacement machines or engines, e.g. steam turbines
- F01D 25/04 - Antivibration arrangements
Patent holdings for IPC class F01D 25/04
Total number of patents in this class: 512
10-year publication summary
|
52
|
51
|
32
|
52
|
20
|
30
|
29
|
21
|
37
|
22
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 10102 |
85 |
| General Electric Company | 13899 |
75 |
| Pratt & Whitney Canada Corp. | 5479 |
72 |
| Safran Aircraft Engines | 6694 |
45 |
| GE Infrastructure Technology, LLC | 6171 |
18 |
| Mitsubishi Heavy Industries, Ltd. | 9128 |
14 |
| United Technologies Corporation | 2220 |
11 |
| SNECMA S.A. | 1146 |
10 |
| Rolls-Royce PLC | 3221 |
9 |
| IHI Corporation | 3535 |
9 |
| Rohr, Inc. | 772 |
9 |
| Hamilton Sundstrand Corporation | 5015 |
7 |
| JPMorgan Chase Bank, National Association | 8956 |
7 |
| MTU Aero Engines AG | 728 |
7 |
| Siemens AG | 24029 |
6 |
| Rolls-Royce Corporation | 1677 |
6 |
| Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. | 825 |
6 |
| The Boeing Company | 20160 |
5 |
| Rolls-Royce North American Technologies, Inc. | 1129 |
5 |
| Nuovo Pignone Tecnologie S.r.l. | 1216 |
5 |
| Other owners | 101 |