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Patent applications and USPTO patent grants for AIGI Environmental Inc..The latest application filed is for "split oil seal composed of double springs and double rings".
Patent | Date |
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Split Oil Seal Composed Of Double Springs And Double Rings App 20220282792 - Zhao; Jingwei ;   et al. | 2022-09-08 |
Mechanical Seal For Liquid With An Axially Floating Tray Sleeve Inside App 20220112956 - ZHAO; Jingwei ;   et al. | 2022-04-14 |
Mechanical seal for liquid with an axially floating tray sleeve inside Grant 11,268,617 - Zhao , et al. March 8, 2 | 2022-03-08 |
Mechanical seal with outer forwardly-inclined rim for liquids Grant 11,054,038 - Zhao , et al. July 6, 2 | 2021-07-06 |
Mechanical Seal With Outer Forwardly-inclined Rim For Liquids App 20200300369 - ZHAO; Jingwei ;   et al. | 2020-09-24 |
Mechanical Seal for Liquid with an Axially Floating Tray Sleeve Inside App 20190383396 - ZHAO; Jingwei ;   et al. | 2019-12-19 |
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