- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F03B - Machines or engines for liquids
- F03B 3/04 - Machines or engines of reaction type; Parts or details peculiar thereto with substantially axial flow throughout rotors, e.g. propeller turbines
Patent holdings for IPC class F03B 3/04
Total number of patents in this class: 211
10-year publication summary
|
20
|
27
|
19
|
24
|
25
|
17
|
21
|
14
|
16
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NTN Corporation | 5008 |
10 |
| Kabushiki Kaisha Bellsion | 30 |
8 |
| Organoworld Inc. | 16 |
6 |
| Save Innovations | 15 |
5 |
| Hydrokinetic Energy Corp | 8 |
5 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 2856 |
5 |
| Oceana Energy Company | 34 |
4 |
| Teral Inc. | 14 |
4 |
| Voith Patent GmbH | 2727 |
4 |
| GE Renewable Technologies | 122 |
4 |
| Kyowa Engineering Consultants Co., Ltd. | 8 |
3 |
| Kinetic NRG Technologies Pty Ltd | 3 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
2 |
| Raytheon Company | 8535 |
2 |
| Aktiebolaget SKF | 2700 |
2 |
| Alstom Renewable Technologies | 76 |
2 |
| Atlantis Resources Corporation Pte Limited | 21 |
2 |
| Braddell Limited | 4 |
2 |
| G.a.m. Manshanden Management B.V. | 4 |
2 |
| Greystone Technologies Pty Ltd | 10 |
2 |
| Other owners | 134 |