- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F03B - Machines or engines for liquids
- F03B 11/02 - Casings
Patent holdings for IPC class F03B 11/02
Total number of patents in this class: 163
10-year publication summary
|
16
|
27
|
9
|
18
|
19
|
9
|
14
|
10
|
8
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 8674 |
9 |
| Voith Patent GmbH | 2727 |
7 |
| Hydrokinetic Energy Corp | 8 |
7 |
| Lone Gull Holdings, Ltd. | 81 |
5 |
| General Electric Company | 18133 |
4 |
| Pratt & Whitney Canada Corp. | 4215 |
4 |
| Kabushiki Kaisha Bellsion | 30 |
4 |
| GE Infrastructure Technology, LLC | 5873 |
4 |
| Toshiba Corporation | 12017 |
3 |
| Siemens Energy, Inc. | 1770 |
3 |
| NTN Corporation | 5008 |
3 |
| Andritz Hydro GmbH | 65 |
2 |
| Canyon Industries, Inc. | 7 |
2 |
| Differential Dynamics Corporation | 27 |
2 |
| Dresser-Rand Company | 233 |
2 |
| Dyson Technology Limited | 3124 |
2 |
| Emrgy, Inc. | 13 |
2 |
| Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences | 195 |
2 |
| Kyowa Engineering Consultants Co., Ltd. | 8 |
2 |
| Organoworld Inc. | 16 |
2 |
| Other owners | 92 |