Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 12, 2022
Patent Application Number
16648994
Date Filed
September 20, 2018
Patent Citations
Patent Primary Examiner
A PVA brush cleaning method includes immersing a PVA brush in a cleaning solution containing an organic matter, thereby removing a siloxane compound in the PVA brush; and applying vibration to the PVA brush, thereby removing impurities in the PVA brush.
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