- 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: 588
10-year publication summary
|
88
|
65
|
51
|
65
|
53
|
44
|
41
|
34
|
37
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 43321 |
21 |
| Graco Minnesota Inc. | 1244 |
18 |
| Halliburton Energy Services, Inc. | 21115 |
14 |
| BorgWarner Inc. | 2594 |
12 |
| AYR Ltd. | 106 |
10 |
| AA Anti-air-lock Corp | 7 |
7 |
| Eaton Intelligent Power Limited | 6112 |
7 |
| Illinois Tool Works Inc. | 11662 |
6 |
| Weatherford Technology Holdings, LLC | 2034 |
6 |
| HL Mando Corporation | 1728 |
6 |
| Honda Motor Co., Ltd. | 25773 |
5 |
| Schaeffler Technologies AG & Co. KG | 10558 |
5 |
| Victaulic Company | 617 |
5 |
| di Monte, Michael a | 5 |
5 |
| Caterpillar Inc. | 10010 |
4 |
| ADVICS Co., Ltd. | 1333 |
4 |
| Aladdin Engineering and Manufacturing, Inc. | 8 |
4 |
| Parker Intangibles LLC | 1195 |
4 |
| Starbucks Corporation, DBA Starbucks Coffee Company | 1012 |
4 |
| Waters Technologies Corporation | 1767 |
4 |
| Other owners | 437 |