Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D813962 | Tennis racket frame | — | 2018-03-27 |
| D777859 | Tennis racket frame | — | 2017-01-31 |
| 9004518 | Shock-absorbing seat post for bicycle | — | 2015-04-14 |
| 8894085 | Shock-absorbing seat stay for bicycle | — | 2014-11-25 |
| 8777250 | Shock-absorbing seat stay for bicycle | — | 2014-07-15 |
| 8758175 | Weighting device and racket equipped with the same | — | 2014-06-24 |
| 8721478 | Weight changeable racket | — | 2014-05-13 |
| 8579738 | Racket with replaceable grip sleeve | — | 2013-11-12 |
| 8245403 | Process of making base of shock-absorbing front fork for bicycle | — | 2012-08-21 |
| 7562890 | Front frame for a bicycle | — | 2009-07-21 |
| 7540518 | Seat tube for a bicycle | — | 2009-06-02 |
| 7537232 | Rear frame for bicycle | — | 2009-05-26 |
| 7413207 | Front fork for a bicycle | — | 2008-08-19 |
| 7371197 | Safety racket | — | 2008-05-13 |
| D561279 | Racket | — | 2008-02-05 |
| 6966855 | Racket with capability of vibration absorption | — | 2005-11-22 |
| 6736733 | On billiard cue | — | 2004-05-18 |
| 6684554 | Hand net frame | — | 2004-02-03 |
| 6358166 | Hockey stick | — | 2002-03-19 |
| 6319159 | Game racket frame with wooden cover layer | — | 2001-11-20 |
| 6209556 | Umbrella skeleton made of composite material | — | 2001-04-03 |
| 6168179 | Bicycle frame assembly having wooden appearance and enhanced mechanical properties | — | 2001-01-02 |