- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 15/16 - Check valves with flexible valve members with tongue-shaped laminae
Patent holdings for IPC class F16K 15/16
Total number of patents in this class: 180
10-year publication summary
|
11
|
17
|
20
|
21
|
6
|
14
|
15
|
9
|
10
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Technocrats Corporation | 45 |
7 |
| Pierburg GmbH | 467 |
5 |
| Whirlpool S.A. | 355 |
5 |
| Denso Corporation | 24259 |
4 |
| Mitsubishi Electric Corporation | 46037 |
4 |
| Schaeffler Technologies AG & Co. KG | 9858 |
4 |
| Atlas Copco Compressors LLC | 18 |
4 |
| Illinois Tool Works Inc. | 11461 |
3 |
| Becton, Dickinson and Company | 7259 |
3 |
| Koninklijke Philips N.V. | 24766 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 31330 |
3 |
| Hamilton Sundstrand Corporation | 4865 |
3 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1456 |
3 |
| Mikuni Corporation | 341 |
3 |
| Stoma Ventures, LLC | 41 |
3 |
| Copeland LP | 701 |
3 |
| Apple Inc. | 54773 |
2 |
| Koninklijke Philips Electronics N.V. | 9696 |
2 |
| Omron Healthcare Co., Ltd. | 1869 |
2 |
| Carrier Corporation | 4348 |
2 |
| Other owners | 112 |