Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11028961 | Tightening structure of musical instrument stand | — | 2021-06-08 |
| 9589642 | Level shifter and decoder for memory | Chien-Ping Tai, Shin-Jang Shen, Chung-Kuang Chen | 2017-03-07 |
| 8020832 | Anti-skid sleeve for musical instrument stand | — | 2011-09-20 |
| 7777113 | Support for a practicing drum or electronic drum | — | 2010-08-17 |
| 7737352 | Instrument stand with variable supporting positions | — | 2010-06-15 |
| 7696422 | Heelless instrument pedal device | — | 2010-04-13 |
| 7511212 | Musical instrument stand assembly with foldable pedal | — | 2009-03-31 |
| 7205469 | Drum bracket | — | 2007-04-17 |
| 7102066 | Angle adjust device for a cymbal | — | 2006-09-05 |
| 6838602 | Instrument support elbow | — | 2005-01-04 |
| 6489547 | Metal drum frame with fixing lugs | — | 2002-12-03 |
| 6362408 | Large-size drum frame with fixing lugs | — | 2002-03-26 |
| 6162978 | Adjusting structure for musical instrument supporters | — | 2000-12-19 |
| 6146101 | Automatic control device for an air compressor | — | 2000-11-14 |
| 4657435 | Underwater tunnel construction | — | 1987-04-14 |