- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16K - Valves; taps; cocks; actuating-floats; devices 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: 576
10-year publication summary
|
41
|
90
|
69
|
58
|
69
|
57
|
47
|
43
|
34
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 41695 |
23 |
| Graco Minnesota Inc. | 1162 |
18 |
| Halliburton Energy Services, Inc. | 20403 |
14 |
| BorgWarner Inc. | 2588 |
12 |
| AYR Ltd. | 96 |
9 |
| AA Anti-air-lock Corp | 7 |
7 |
| Illinois Tool Works Inc. | 11379 |
6 |
| Eaton Intelligent Power Limited | 6291 |
6 |
| HL Mando Corporation | 1507 |
6 |
| Honda Motor Co., Ltd. | 24855 |
5 |
| Caterpillar Inc. | 9149 |
5 |
| Schaeffler Technologies AG & Co. KG | 9350 |
5 |
| Weatherford Technology Holdings, LLC | 2107 |
5 |
| Victaulic Company | 634 |
5 |
| di Monte, Michael a | 5 |
5 |
| ADVICS Co., Ltd. | 1232 |
4 |
| Aladdin Engineering and Manufacturing, Inc. | 8 |
4 |
| Dayco IP Holdings, LLC | 392 |
4 |
| Parker Intangibles LLC | 1194 |
4 |
| Starbucks Corporation, DBA Starbucks Coffee Company | 935 |
4 |
| Other owners | 425 |