Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9844711 | Flexible grip and cap therefor | Stephen J. Davis, LingYu Hsu, Rita Chang | 2017-12-19 |
| D796608 | Golf grip cap | Stephen J. Davis, LingYu Hsu, Rita Chang | 2017-09-05 |
| 5533290 | Picture frame with sound producing means | TONG-YEE LEE | 1996-07-09 |
| 5182872 | Sound producing control switch for a picture-frame | Larry D. Lee | 1993-02-02 |