- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01K - Steam engine plantssteam accumulatorsengine plants not otherwise provided forengines using special working fluids or cycles
- F01K 25/04 - Plants or engines characterised by use of special working fluids, not otherwise provided forPlants operating in closed cycles and not otherwise provided for the fluid being in different phases, e.g. foamed
Patent holdings for IPC class F01K 25/04
Total number of patents in this class: 69
10-year publication summary
|
7
|
6
|
4
|
7
|
4
|
4
|
7
|
2
|
3
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Heat Source Energy Corp. | 13 |
8 |
| Atlas Copco Airpower, naamloze vennootschap | 1063 |
5 |
| Hevatech | 11 |
5 |
| Gates Foundation, Gates, William H., Iiiindividualwashington | 24 |
5 |
| Siemens AG | 24200 |
2 |
| Aoe Accumulated Ocean Energy Inc. | 9 |
2 |
| ElectraTherm, Inc. | 6 |
2 |
| Isuzu Motors Limited | 2304 |
2 |
| SustainX, Inc. | 9 |
2 |
| Astertech, S. L. | 3 |
2 |
| The Regents of the University of California | 20534 |
1 |
| International Business Machines Corporation | 62220 |
1 |
| Eaton Corporation | 1807 |
1 |
| Centre National de La Recherche Scientifique | 10865 |
1 |
| Rolls-Royce PLC | 3183 |
1 |
| Bill & Melinda Gates Foundation, William H. Gates III and Melinda F. Gates, both US citizens | 4 |
1 |
| Echogen Power Systems, LLC | 63 |
1 |
| Fluor Technologies Corporation | 368 |
1 |
| Highview Enterprises Limited | 48 |
1 |
| PACCAR Inc | 1369 |
1 |
| Other owners | 24 |