- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 15/04 - Check valves with guided rigid valve members shaped as balls
Patent holdings for IPC class F16K 15/04
Total number of patents in this class: 597
10-year publication summary
|
90
|
69
|
58
|
69
|
57
|
48
|
45
|
36
|
37
|
23
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 44176 |
21 |
| Graco Minnesota Inc. | 1281 |
18 |
| Halliburton Energy Services, Inc. | 21320 |
15 |
| BorgWarner Inc. | 2583 |
12 |
| AYR Ltd. | 105 |
10 |
| Eaton Intelligent Power Limited | 6257 |
8 |
| AA Anti-air-lock Corp | 7 |
7 |
| Illinois Tool Works Inc. | 11866 |
6 |
| Schaeffler Technologies AG & Co. KG | 11003 |
6 |
| Weatherford Technology Holdings, LLC | 2158 |
6 |
| HL Mando Corporation | 1842 |
6 |
| Honda Motor Co., Ltd. | 26034 |
5 |
| Caterpillar Inc. | 10281 |
5 |
| Victaulic Company | 618 |
5 |
| di Monte, Michael a | 5 |
5 |
| ADVICS Co., Ltd. | 1376 |
4 |
| Aladdin Engineering and Manufacturing, Inc. | 8 |
4 |
| Starbucks Corporation, DBA Starbucks Coffee Company | 1015 |
4 |
| Waters Technologies Corporation | 1792 |
4 |
| Baker Hughes, a GE Company, LLC | 2054 |
4 |
| Other owners | 442 |