- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01K - Steam engine plantssteam accumulatorsengine plants not otherwise provided forengines using special working fluids or cycles
- F01K 3/18 - Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters
Patent holdings for IPC class F01K 3/18
Total number of patents in this class: 469
10-year publication summary
|
47
|
38
|
25
|
29
|
28
|
52
|
43
|
50
|
41
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rondo Energy, Inc. | 85 |
62 |
| Malta Inc. | 119 |
39 |
| Saudi Arabian Oil Company | 13857 |
29 |
| Siemens AG | 24278 |
23 |
| Energy Dome S.p.A. | 40 |
14 |
| Terrapower, LLC | 342 |
10 |
| Pintail Power LLC | 22 |
10 |
| Siemens Energy Global GmbH & Co. KG | 3166 |
8 |
| 8 Rivers Capital, LLC | 240 |
7 |
| Battelle Memorial Institute | 2535 |
6 |
| Echogen Power Systems, LLC | 63 |
6 |
| Lumenion GmbH | 23 |
6 |
| Siemens Gamesa Renewable Energy GmbH & Co. KG | 40 |
6 |
| Hi Eff Utility Rescue LLC | 5 |
5 |
| GE Infrastructure Technology, LLC | 6202 |
5 |
| Clean Planet Inc. | 79 |
4 |
| Holtec International, Inc. | 273 |
4 |
| SABIC Global Technologies B.V. | 4451 |
4 |
| Siemens Gamesa Renewable Energy A/S | 1917 |
4 |
| XYZ Energy Group, LLC | 8 |
4 |
| Other owners | 213 |