- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16J - Pistons; cylinders; pressure vessels in general; sealings
- F16J 15/3288 - Filamentary structures, e.g. brush seals
Patent holdings for IPC class F16J 15/3288
Total number of patents in this class: 135
10-year publication summary
|
19
|
22
|
17
|
23
|
13
|
20
|
7
|
9
|
6
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 8674 |
28 |
| MTU Aero Engines AG | 622 |
9 |
| Eagle Industry Co., Ltd. | 1062 |
8 |
| Rolls-Royce North American Technologies, Inc. | 1079 |
7 |
| Doosan Heavy Industries & Construction Co., Ltd. | 604 |
6 |
| Rolls-Royce PLC | 2944 |
4 |
| Rolls-Royce Corporation | 1686 |
4 |
| Sanwa Techno Co., Ltd. | 35 |
4 |
| Mitsubishi Power, Ltd. | 1680 |
4 |
| Siemens AG | 24990 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
3 |
| Siemens Energy, Inc. | 1770 |
3 |
| Safran Aircraft Engines | 5739 |
3 |
| GE Infrastructure Technology, LLC | 5873 |
3 |
| General Electric Company | 18133 |
2 |
| Pratt & Whitney Canada Corp. | 4215 |
2 |
| FUJIFILM Corporation | 27102 |
2 |
| Textron Innovations Inc. | 2138 |
2 |
| AMEC Foster Wheeler USA Corporation | 22 |
2 |
| Danfoss A/S | 1259 |
2 |
| Other owners | 34 |