Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5654680 | Saw-based ladder filter including multiple coUpling coefficients (K.sup.2), Method therefor and radio incorporating same | Philip P. Kwan, Ali-Reza Baghai-Wadji | 1997-08-05 |
| 5638036 | Acoustic wave ladder filter with unequal series and shunt transducer periodicities and method of making | Thomas S. Hickernell | 1997-06-10 |
| 5635883 | Acoustic wave filter with filter-shaping element and method | Thomas S. Hickernell, Frederick Y. Cho | 1997-06-03 |
| 5600287 | Acoustic wave filter with reduced bulk-wave scattering loss, ladder filter incorporating same and method | Philip P. Kwan, Thomas S. Hickernell | 1997-02-04 |