- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16N - Lubricating
- F16N 23/00 - Special adaptations of check valves
Patent holdings for IPC class F16N 23/00
Total number of patents in this class: 64
10-year publication summary
|
10
|
6
|
6
|
9
|
8
|
2
|
1
|
7
|
4
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Pratt & Whitney Canada Corp. | 4442 |
5 |
| Ahwon Corporation | 15 |
5 |
| Zhengzhou Autol Technology Co., Ltd. | 16 |
5 |
| Magna Powertrain Inc. | 115 |
3 |
| Hanon Systems EFP Canada Ltd. | 65 |
3 |
| Kawasaki Heavy Industries, Limited | 1590 |
2 |
| Dana Canada Corporation | 276 |
2 |
| Stackpole International Engineered Products, Ltd. | 48 |
2 |
| Zhejiang Sanhua Automotive Components Co., Ltd. | 278 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 8538 |
1 |
| Toshiba Corporation | 12051 |
1 |
| GM Global Technology Operations LLC | 14260 |
1 |
| Makita Corporation | 2415 |
1 |
| ABB Oy | 165 |
1 |
| Autol Technology Co., Ltd | 4 |
1 |
| Compressor Products International LLC | 28 |
1 |
| Cool Tech Co., Ltd. | 5 |
1 |
| Curtis ROYS | 2 |
1 |
| ElringKlinger AG | 511 |
1 |
| Graco Minnesota Inc. | 1163 |
1 |
| Other owners | 24 |