Li; Yuanshui
Patent Applications and Registrations
Patent applications and USPTO patent grants for Li; Yuanshui.The latest application filed is for "self-sealing butterfly valve".
- Li; Yuanshui - Shandong CN
- Li; Yuanshui - Weicheng Weifang Shandong
| Patent | Date |
|---|---|
| Self-sealing butterfly valve Grant 9,995,399 - Zhang , et al. June 12, 2 | 2018-06-12 |
| Self-sealing Butterfly Valve App 20160201808 - Zhang; Tonghu ; et al. | 2016-07-14 |
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