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Patent applications and USPTO patent grants for Chen; Junmin.The latest application filed is for "detecting device and method for acoustic emission on high-frequency motion rubbing pair surface".
Patent | Date |
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Detecting device and method for acoustic emission on high-frequency motion rubbing pair surface Grant 10,859,535 - Zhang , et al. December 8, 2 | 2020-12-08 |
Detecting Device And Method For Acoustic Emission On High-frequency Motion Rubbing Pair Surface App 20200132636 - ZHANG; Caixia ;   et al. | 2020-04-30 |
Two-step enzyme method for preparing 7-aminocephalosporanic acid Grant 8,003,358 - Wang , et al. August 23, 2 | 2011-08-23 |
Two-Step Enzyme Method for Preparing 7-Aminocephalosporanic Acid App 20100112633 - Wang; Jun ;   et al. | 2010-05-06 |
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