- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F01K - Steam engine plants; steam accumulators; engine plants not otherwise provided for; engines using special working fluids or cycles
- F01K 25/00 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
Patent holdings for IPC class F01K 25/00
Total number of patents in this class: 271
10-year publication summary
26
|
22
|
21
|
21
|
16
|
23
|
29
|
37
|
13
|
4
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Malta Inc. | 107 |
8 |
Siemens Energy Global GmbH & Co. KG | 2775 |
8 |
Ormat Technologies, Inc. | 122 |
7 |
General Electric Company | 18133 |
6 |
Siemens AG | 24990 |
6 |
New Power Concepts LLC | 29 |
6 |
Sanden Corporation | 859 |
5 |
Kalina Power Limited | 26 |
5 |
3m Innovative Properties Company | 18406 |
4 |
The Chemours Company Fc, LLC | 1107 |
4 |
Mitsubishi Heavy Industries, Ltd. | 8217 |
3 |
Clean Energy HRS LLC | 7 |
3 |
Cummins Inc. | 2369 |
3 |
Echogen Power Systems, LLC | 63 |
3 |
Linde Aktiengesellschaft | 1600 |
3 |
Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6275 |
3 |
Mitsubishi Power Americas, Inc. | 50 |
3 |
Steamology Motion Ltd | 3 |
3 |
Sony Corporation | 32931 |
2 |
The Regents of the University of California | 18943 |
2 |
Other owners | 184 |