Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5675091 | Step-wise tracking electronic filter with offset up and down transition | Hyok S. Lew, Yon S. Lew | 1997-10-07 |
| 5591923 | Electroic filter for flowmeters with compound controls | Hyok S. Lew, Yon S. Lew | 1997-01-07 |