Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8740675 | Method of making a grinding disk and a grinding disk | Yu-Lung Wu, Yang-Wen Lee | 2014-06-03 |
| 6708798 | Easily controlled exhaust pipe | — | 2004-03-23 |
| 6655823 | Illuminating apparatus for exhaust tail pipe | — | 2003-12-02 |
| 6623134 | Light-emitting structures of an automotive exhaust tailpipe, muffler, or the like | — | 2003-09-23 |
| 6598390 | Easily controlled exhaust pipe | — | 2003-07-29 |
| 6457551 | Replaceable muffler structure with an adjustable length | — | 2002-10-01 |
| 6367580 | Sound adjustable tail pipe structure | — | 2002-04-09 |
| 6343673 | Turbine exhaust structure for vehicle | — | 2002-02-05 |
| 6267199 | Automobile exhaust tube | — | 2001-07-31 |