Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D404118 | Simplet valve | — | 1999-01-12 |
| 5524308 | Sleeping mat and seating arrangement | Phillip Hwang | 1996-06-11 |
| 5474361 | Portable chair structure | Phillip Hwang | 1995-12-12 |
| D360768 | Portable seat | Phillip Hwang | 1995-08-01 |
| 5384923 | Sleeping mat and seating arrangement | Phillip Hwang | 1995-01-31 |
| 5190350 | Seating arrangement | Phillip Hwang | 1993-03-02 |
| D329148 | Collapsible seat | Phillip Hwang | 1992-09-08 |