- 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 25/08 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
Patent holdings for IPC class F01K 25/08
Total number of patents in this class: 613
10-year publication summary
|
69
|
83
|
58
|
46
|
44
|
23
|
41
|
24
|
28
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ice Thermal Harvesting, LLC | 76 |
47 |
| Saudi Arabian Oil Company | 12404 |
38 |
| Ormat Technologies, Inc. | 120 |
23 |
| Echogen Power Systems, LLC | 63 |
21 |
| Orcan Energy AG | 54 |
17 |
| Panasonic Intellectual Property Management Co., Ltd. | 29620 |
13 |
| Turboden SpA | 57 |
13 |
| Nuovo Pignone Tecnologie S.r.l. | 852 |
11 |
| Siemens AG | 24572 |
10 |
| The Chemours Company Fc, LLC | 1139 |
10 |
| Robert Bosch GmbH | 41717 |
8 |
| Turboden S.r.l. | 33 |
8 |
| United Technologies Corporation | 2259 |
7 |
| Atlas Copco Airpower, naamloze vennootschap | 982 |
7 |
| General Electric Company | 17803 |
5 |
| Aramco Services Company | 3740 |
5 |
| Nanjing Tica Air-Conditioning Co., Ltd. | 14 |
5 |
| Nuovo Pignone S.p.A. | 90 |
5 |
| Kalina Power Limited | 22 |
5 |
| 3m Innovative Properties Company | 17955 |
4 |
| Other owners | 351 |