- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16K - Valves; taps; cocks; actuating-floats; devices for venting or aerating
- F16K 15/02 - Check valves with guided rigid valve members
Patent holdings for IPC class F16K 15/02
Total number of patents in this class: 1030
10-year publication summary
|
77
|
119
|
143
|
131
|
123
|
113
|
97
|
82
|
69
|
17
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 40953 |
35 |
| Hamilton Sundstrand Corporation | 4525 |
13 |
| BorgWarner Inc. | 2604 |
11 |
| Halliburton Energy Services, Inc. | 20165 |
10 |
| CareFusion 303, Inc. | 1975 |
10 |
| Dayco IP Holdings, LLC | 396 |
10 |
| Toyota Motor Corporation | 28582 |
9 |
| Schaeffler Technologies AG & Co. KG | 8880 |
9 |
| Goodrich Corporation | 2081 |
9 |
| Reinz-Dichtungs-GmbH | 245 |
9 |
| LG Electronics Inc. | 69257 |
8 |
| Denso Corporation | 23338 |
8 |
| JTEKT Corporation | 2423 |
8 |
| Engineered Controls International, LLC | 122 |
8 |
| Hanon Systems | 1632 |
8 |
| Illinois Tool Works Inc. | 11152 |
7 |
| Burckhardt Compression AG | 116 |
7 |
| Zhejiang DunAn Artificial Environment Co., Ltd | 394 |
7 |
| Mitsubishi Electric Corporation | 43934 |
6 |
| Continental Teves AG & Co. oHG | 2354 |
6 |
| Other owners | 832 |