- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F01D - Non-positive-displacement machines or engines, e.g. steam turbines
- F01D 25/00 - Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
Patent holdings for IPC class F01D 25/00
Total number of patents in this class: 2297
10-year publication summary
235
|
253
|
281
|
271
|
206
|
162
|
129
|
100
|
95
|
23
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
General Electric Company | 18133 |
212 |
Rtx Corporation | 8674 |
207 |
Mitsubishi Heavy Industries, Ltd. | 8217 |
173 |
Mitsubishi Hitachi Power Systems, Ltd. | 999 |
159 |
GE Infrastructure Technology, LLC | 5873 |
109 |
Mitsubishi Power, Ltd. | 1680 |
93 |
IHI Corporation | 3268 |
92 |
Rolls-Royce Corporation | 1686 |
88 |
United Technologies Corporation | 2328 |
82 |
Safran Aircraft Engines | 5739 |
79 |
Pratt & Whitney Canada Corp. | 4215 |
61 |
Siemens AG | 24990 |
52 |
Rolls-Royce PLC | 2944 |
51 |
Rolls-Royce North American Technologies, Inc. | 1079 |
44 |
Mitsubishi Heavy Industries Compressor Corporation | 613 |
30 |
Lufthansa Technik AG | 468 |
26 |
EcoServices, LLC | 50 |
24 |
Siemens Energy, Inc. | 1770 |
23 |
Mitsubishi Heavy Industries Aero Engines, Ltd. | 121 |
21 |
Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6275 |
20 |
Other owners | 651 |