- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01K - Steam engine plantssteam accumulatorsengine plants not otherwise provided forengines using special working fluids or cycles
- F01K 3/20 - Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters with heating by combustion gases of main boiler
Patent holdings for IPC class F01K 3/20
Total number of patents in this class: 36
10-year publication summary
|
9
|
3
|
5
|
3
|
2
|
2
|
2
|
1
|
3
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Malta Inc. | 105 |
10 |
| Saudi Arabian Oil Company | 14398 |
2 |
| Nuovo Pignone Tecnologie S.r.l. | 1232 |
2 |
| Siemens AG | 23934 |
1 |
| Evonik Industries AG | 223 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 34623 |
1 |
| ExxonMobil Chemical Patents Inc. | 3756 |
1 |
| Air Products and Chemicals, Inc. | 1476 |
1 |
| Alfa Laval Corporate AB | 1348 |
1 |
| Doosan Heavy Industries & Construction Co., Ltd. | 580 |
1 |
| Enea Agenzia Nazionale per le Nuove Tecnologie, L'energia e LO Sviluppo Economico Sostenibile | 62 |
1 |
| Linde Aktiengesellschaft | 1410 |
1 |
| Nanyang Technological University | 2249 |
1 |
| Stamicarbon B.V. | 322 |
1 |
| Universita' degli Studi di Udine | 78 |
1 |
| Yara International ASA | 909 |
1 |
| Zeeco, Inc. | 42 |
1 |
| GE Infrastructure Technology, LLC | 6151 |
1 |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6119 |
1 |
| Tascosa Advanced Service, Inc. | 3 |
1 |
| Other owners | 5 |