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Patent applications and USPTO patent grants for Hwang; Phillip.The latest application filed is for "sleeping mat and seating arrangement".
Patent | Date |
---|---|
Sleeping mat and seating arrangement Grant 5,524,308 - Hwang , et al. June 11, 1 | 1996-06-11 |
Portable seat Grant D360,768 - Hwang , et al. August 1, 1 | 1995-08-01 |
Sleeping mat and seating arrangement Grant 5,384,923 - Hwang , et al. January 31, 1 | 1995-01-31 |
Seating arrangement Grant 5,190,350 - Hwang , et al. March 2, 1 | 1993-03-02 |
Collapsible seat Grant D329,148 - Hwang , et al. September 8, 1 | 1992-09-08 |
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