- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16J - Pistonscylinderspressure vessels in generalsealings
- F16J 15/26 - Sealings between relatively-moving surfaces with stuffing-boxes for rigid sealing rings
Patent holdings for IPC class F16J 15/26
Total number of patents in this class: 139
10-year publication summary
|
2
|
13
|
5
|
10
|
12
|
17
|
7
|
11
|
7
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Burckhardt Compression AG | 123 |
16 |
| Kerr Machine Co. | 158 |
16 |
| Dover Pumps & Process Solutions Segment, Inc. | 24 |
9 |
| NOK Corporation | 2253 |
8 |
| Hoerbiger Wien GmbH | 134 |
7 |
| Halliburton Energy Services, Inc. | 21110 |
6 |
| Seal-ryt Corporation | 35 |
5 |
| Nuovo Pignone Tecnologie S.r.l. | 1097 |
5 |
| Howden Thomassen Compressors BV | 17 |
4 |
| STASSKOL GmbH | 12 |
4 |
| Rtx Corporation | 9689 |
4 |
| Bridgestone Corporation | 7215 |
2 |
| Rolls-Royce PLC | 3175 |
2 |
| Garlock Sealing Technologies LLC | 144 |
2 |
| Hermetik Hydraulik AB | 9 |
2 |
| MAN Diesel & Turbo, Filial af MAN Diesel & Turbo SE, Tyskland | 32 |
2 |
| National Coupling Company, Inc. | 61 |
2 |
| Oil Lift Technology Inc. | 17 |
2 |
| Technetics Group LLC | 40 |
2 |
| Flowserve Pte. Ltd | 367 |
2 |
| Other owners | 37 |