- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F01K - Steam engine plants; steam accumulators; engine plants not otherwise provided for; engines using special working fluids or cycles
- F01K 1/00 - Steam accumulators
Patent holdings for IPC class F01K 1/00
Total number of patents in this class: 65
10-year publication summary
|
4
|
3
|
2
|
3
|
1
|
1
|
1
|
0
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toshiba Corporation | 12051 |
4 |
| Cyclone Power Technologies, Inc. | 10 |
4 |
| United Technologies Corporation | 2259 |
3 |
| Donaldson Company, Inc. | 1574 |
3 |
| ABB Schweiz AG | 6632 |
2 |
| Research Foundation of the City University of New York | 412 |
2 |
| Nuovo Pignone Tecnologie S.r.l. | 858 |
2 |
| Hevatech | 12 |
2 |
| Siemens Energy Global GmbH & Co. KG | 2829 |
2 |
| Siemens AG | 24565 |
1 |
| The Boeing Company | 19911 |
1 |
| Mitsubishi Heavy Industries, Ltd. | 8538 |
1 |
| Raytheon Company | 8444 |
1 |
| 1304338 Alberta Ltd. | 87 |
1 |
| 1304342 Alberta Ltd. | 85 |
1 |
| Advanced Combustion Energy Systems, Inc. | 7 |
1 |
| Anax Holdings, LLC | 4 |
1 |
| Bluelagoon Technologies Ltd. | 3 |
1 |
| Echogen Power Systems, Inc. | 15 |
1 |
| Electrolux Appliances Aktiebolag | 1276 |
1 |
| Other owners | 30 |