- 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: 183
10-year publication summary
|
11
|
17
|
19
|
21
|
6
|
14
|
15
|
8
|
9
|
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 | 470 |
5 |
| Whirlpool S.A. | 353 |
5 |
| Denso Corporation | 24562 |
4 |
| Mitsubishi Electric Corporation | 46590 |
4 |
| Schaeffler Technologies AG & Co. KG | 10035 |
4 |
| Atlas Copco Compressors LLC | 17 |
4 |
| Illinois Tool Works Inc. | 11519 |
3 |
| Becton, Dickinson and Company | 7321 |
3 |
| Koninklijke Philips N.V. | 24932 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 32105 |
3 |
| Hamilton Sundstrand Corporation | 4931 |
3 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1466 |
3 |
| Mikuni Corporation | 341 |
3 |
| Stoma Ventures, LLC | 41 |
3 |
| Copeland LP | 702 |
3 |
| Samsung Electronics Co., Ltd. | 147983 |
2 |
| Apple Inc. | 55640 |
2 |
| Koninklijke Philips Electronics N.V. | 9193 |
2 |
| Omron Healthcare Co., Ltd. | 1894 |
2 |
| Other owners | 115 |