- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01K - Steam engine plantssteam accumulatorsengine plants not otherwise provided forengines using special working fluids or cycles
- F01K 21/00 - Steam engine plants not otherwise provided for
Patent holdings for IPC class F01K 21/00
Total number of patents in this class: 105
10-year publication summary
|
15
|
12
|
12
|
15
|
13
|
15
|
8
|
9
|
5
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Heavy Industries, Ltd. | 8573 |
7 |
| Hevatech | 11 |
4 |
| Atlas Copco Airpower, naamloze vennootschap | 995 |
3 |
| Heat Source Energy Corp. | 7 |
3 |
| Saudi Arabian Oil Company | 12683 |
3 |
| Oqab Dietrich Induction Inc. | 55 |
3 |
| Siemens Energy Global GmbH & Co. KG | 2872 |
3 |
| Highview Enterprises Limited | 49 |
2 |
| Korea Institute of Energy Research | 832 |
2 |
| Ormat Technologies, Inc. | 116 |
2 |
| Tinman Inc. | 5 |
2 |
| Valmet Technologies Oy | 283 |
2 |
| Turboden SpA | 57 |
2 |
| Noditech AB | 5 |
2 |
| Mitsubishi Power, Ltd. | 1747 |
2 |
| General Electric Company | 17076 |
1 |
| Siemens AG | 24544 |
1 |
| Shell Internationale Research Maatschappij B.V. | 3473 |
1 |
| Eaton Corporation | 1821 |
1 |
| Panasonic Corporation | 20220 |
1 |
| Other owners | 58 |