- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- F04B 1/182 - Check valves
Patent holdings for IPC class F04B 1/182
Total number of patents in this class: 17
10-year publication summary
|
0
|
0
|
0
|
3
|
1
|
1
|
4
|
2
|
3
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Active Products Inc. | 23 |
3 |
| Tonand Inc. | 16 |
2 |
| Maxell IZUMI Co., Ltd. | 44 |
2 |
| Kawasaki Heavy Industries, Limited | 1641 |
1 |
| Graco Minnesota Inc. | 1202 |
1 |
| Hypertherm, Inc. | 633 |
1 |
| Kanzaki Kokyukoki Mfg. Co., Ltd. | 190 |
1 |
| SOLO Kleinmotoren GmbH | 12 |
1 |
| Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | 453 |
1 |
| KHOLLE Magnolia 2015, LLC | 22 |
1 |
| Mixtron S.r.l. | 28 |
1 |
| Poisedon Fluid Power, LLC | 1 |
1 |
| Alphinity USA, Inc. | 18 |
1 |
| Other owners | 0 |