- 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: 567
10-year publication summary
33
|
41
|
90
|
69
|
58
|
69
|
57
|
43
|
41
|
14
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Robert Bosch GmbH | 40953 |
25 |
Graco Minnesota Inc. | 1124 |
19 |
Halliburton Energy Services, Inc. | 20165 |
14 |
BorgWarner Inc. | 2604 |
11 |
AYR Ltd. | 96 |
9 |
AA Anti-air-lock Corp | 7 |
7 |
Eaton Intelligent Power Limited | 6113 |
7 |
Illinois Tool Works Inc. | 11152 |
6 |
HL Mando Corporation | 1310 |
6 |
Honda Motor Co., Ltd. | 24537 |
5 |
Caterpillar Inc. | 8877 |
5 |
Schaeffler Technologies AG & Co. KG | 8880 |
5 |
Victaulic Company | 664 |
5 |
di Monte, Michael a | 5 |
5 |
Harris Corporation | 1591 |
4 |
Weatherford Technology Holdings, LLC | 2135 |
4 |
ADVICS Co., Ltd. | 1182 |
4 |
Aladdin Engineering and Manufacturing, Inc. | 7 |
4 |
Dayco IP Holdings, LLC | 396 |
4 |
Edwards Limited | 764 |
4 |
Other owners | 414 |