- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04B - Positive-displacement machines for liquids; pumps
- F04B 1/182 - Check valves
Patent holdings for IPC class F04B 1/182
Total number of patents in this class: 10
10-year publication summary
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0
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0
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0
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0
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3
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1
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1
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2
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1
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2
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Maxell IZUMI Co., Ltd. | 36 |
2 |
| Graco Minnesota Inc. | 1124 |
1 |
| Kanzaki Kokyukoki Mfg. Co., Ltd. | 193 |
1 |
| OMAX Corporation | 120 |
1 |
| SOLO Kleinmotoren GmbH | 12 |
1 |
| Tonand Inc. | 12 |
1 |
| KHOLLE Magnolia 2015, LLC | 19 |
1 |
| Poisedon Fluid Power, LLC | 1 |
1 |
| Alphinity USA, Inc. | 15 |
1 |
| Other owners | 0 |