- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01K - Steam engine plantssteam accumulatorsengine plants not otherwise provided forengines using special working fluids or cycles
- F01K 3/12 - Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having two or more accumulators
Patent holdings for IPC class F01K 3/12
Total number of patents in this class: 286
10-year publication summary
|
17
|
19
|
22
|
11
|
16
|
26
|
24
|
19
|
15
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Malta Inc. | 119 |
60 |
| Siemens AG | 24294 |
22 |
| ABB Research Ltd. | 846 |
13 |
| Energy Dome S.p.A. | 40 |
12 |
| Isentropic Limited | 24 |
9 |
| Stiesdal Storage A/S | 8 |
7 |
| Futurebay Limited | 6 |
6 |
| Siemens Energy Global GmbH & Co. KG | 3151 |
6 |
| Google LLC | 43386 |
4 |
| Saipem S.A. | 231 |
4 |
| Saudi Arabian Oil Company | 13814 |
4 |
| Nuovo Pignone Tecnologie S.r.l. | 1106 |
4 |
| Nooter/eriksen, Inc. | 73 |
4 |
| Supercritical Storage Company, Inc. | 14 |
4 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10977 |
3 |
| Arizona Board of Regents on behalf of Arizona State University | 2777 |
3 |
| Colorado State University Research Foundation | 722 |
3 |
| General Electric Technology GmbH | 1359 |
3 |
| Norwich Technologies, Inc. | 16 |
3 |
| Universidad Politecnica de Madrid | 304 |
3 |
| Other owners | 109 |