Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9216839 | Cardboard box construction | — | 2015-12-22 |
| 6239673 | Dielectric resonator filter having reduced spurious modes | Robert J. Wenzel, Paul Bartley, Lucy Bartley | 2001-05-29 |
| 6094113 | Dielectric resonator filter having cross-coupled resonators | Robert J. Wenzel, Paul Bartley, Lucy Bartley | 2000-07-25 |
| 5841330 | Series coupled filters where the first filter is a dielectric resonator filter with cross-coupling | Robert J. Wenzel, Peter J. Melling, Paul Bartley, Lucy Bartley | 1998-11-24 |
| 5191305 | Multiple bandpass filter | R. Jack Frost | 1993-03-02 |