- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 39/00 - Devices for relieving the pressure on the sealing faces
Patent holdings for IPC class F16K 39/00
Total number of patents in this class: 30
10-year publication summary
|
3
|
4
|
1
|
3
|
1
|
0
|
1
|
1
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Fisher Controls International LLC | 1484 |
4 |
| Mueller International, LLC | 737 |
2 |
| Flowserve Pte. Ltd. | 51 |
2 |
| The Boeing Company | 20094 |
1 |
| EMD Millipore Corporation | 634 |
1 |
| Cummins Turbo Technologies Limited | 99 |
1 |
| Dril-Quip, Inc. | 38 |
1 |
| Eagle Industry Co., Ltd. | 1169 |
1 |
| ebm-papst Landshut GmbH | 87 |
1 |
| Fluke Corporation | 994 |
1 |
| Kosmek Ltd. | 156 |
1 |
| Metrex Valve Corp. | 1 |
1 |
| Solray Energy Limited | 4 |
1 |
| Tescom Corporation | 115 |
1 |
| The UAB Research Foundation | 658 |
1 |
| Vernay Laboratories, Inc. | 32 |
1 |
| Volvo Construction Equipment Holding Sweden AB | 25 |
1 |
| Dresser LLC | 290 |
1 |
| Mærsk Container Industri A/S | 30 |
1 |
| Science & Technology Development Fund | 10 |
1 |
| Other owners | 5 |