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Patent applications and USPTO patent grants for Dewhurst; David Charles.The latest application filed is for "system for presenting items".
Patent | Date |
---|---|
System for presenting items Grant 10,565,898 - Dewhurst Feb | 2020-02-18 |
System for Presenting Items App 20170365188 - Dewhurst; David Charles | 2017-12-21 |
System for presenting visual items Grant 9,430,954 - Dewhurst August 30, 2 | 2016-08-30 |
Audiotactile vision substitution system Grant 8,239,032 - Dewhurst August 7, 2 | 2012-08-07 |
Audiotactile Vision Substitution System App 20080058894 - Dewhurst; David Charles | 2008-03-06 |
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