Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6336229 | Water saving apparatus for water tank | — | 2002-01-08 |
| 5519898 | Bidirectional two-volume flush control mechanism for toilets | Shyan-Dyi Guo | 1996-05-28 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6336229 | Water saving apparatus for water tank | — | 2002-01-08 |
| 5519898 | Bidirectional two-volume flush control mechanism for toilets | Shyan-Dyi Guo | 1996-05-28 |