Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yun Shao0
David Schlossman0
Date of Patent
April 24, 2018
0Patent Application Number
149864640
Date Filed
December 31, 2015
0Patent Primary Examiner
Patent abstract
This disclosure provides sunscreen products that contain metal oxide powders having discrete size distributions. Metal oxide powders include, for example, zinc oxide and titanium dioxide. Sunscreen products made in accordance with the principles of this disclosure contain metal oxide powders having primary particle sizes of about 10-30 nm and about 50-200 nm.
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