Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6137745 | Embedded memory control circuit for control of access operations to a memory module | Yu-Chang Lin, Chuan-Jen Chang, Chen-Chi Chan | 2000-10-24 |
| 5920919 | Toilet flush system | — | 1999-07-13 |
| 5742950 | Apparatus for pressure assisted flush toilets | — | 1998-04-28 |
| 5422452 | Movable electrical potentiometer contact assembly | Wan Hu | 1995-06-06 |
| 5131622 | Metering valve for water faucet | — | 1992-07-21 |
| 4867603 | Device for preventing flooding caused by sprinkler failure | — | 1989-09-19 |
| 4842198 | Device for damage protection against local flooding caused by sprinkler failure | — | 1989-06-27 |
| 4793190 | Device for measuring and indicating flow around a bend | — | 1988-12-27 |
| 4762666 | Automatically closing swing gate closure assembly | William J. Schuck, Richard Gilmore | 1988-08-09 |
| 4745877 | Rotary sight flow indicator | — | 1988-05-24 |
| 4601309 | Valve and dash-pot assembly | — | 1986-07-22 |
| 4267052 | Aeration method and apparatus | — | 1981-05-12 |
| 4211733 | Gas-liquid mixing process and apparatus | — | 1980-07-08 |
| 4207180 | Gas-liquid reaction method and apparatus | — | 1980-06-10 |