Issued Patents All Time
Showing 1–25 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6131256 | Temperature compensated resonator and method | John R. Welling | 2000-10-17 |
| 5884378 | Method of making an enhanced quality factor resonator | — | 1999-03-23 |
| 5696423 | Temperature compenated resonator and method | John R. Welling | 1997-12-09 |
| 5658810 | Method of making a sensor for determining a ratio of materials in a mixture | John S. Escher | 1997-08-19 |
| 5617065 | Filter using enhanced quality factor resonator and method | — | 1997-04-01 |
| 5615473 | Method of making a ferrite/semiconductor resonator/filter | John M. Golio, Robert J. Higgins, Jr., Aristotelis S. Arvanitis | 1997-04-01 |
| 5596239 | Enhanced quality factor resonator | — | 1997-01-21 |
| 5578961 | MMIC bias apparatus and method | Lyle A. Fajen, Hugh R. Malone | 1996-11-26 |
| 5517688 | MMIC FET mixer and method | Lyle A. Fajen | 1996-05-14 |
| 5500543 | Sensor for determining a ratio of materials in a mixture and method | John S. Escher | 1996-03-19 |
| 5485131 | Transmission line filter for MIC and MMIC applications | Lyle A. Fajen | 1996-01-16 |
| 5481231 | Lumped element four port coupler | Craig E. Lindberg | 1996-01-02 |
| 5469129 | Impedance transforming three-port power divider/combiner using lumped elements | — | 1995-11-21 |
| 5451913 | Compact MMIC tunable biphase modulator and method | Beth A. Longbrake | 1995-09-19 |
| 5442327 | MMIC tunable biphase modulator | Beth A. Longbrake, Hugh R. Malone | 1995-08-15 |
| 5432487 | MMIC differential phase shifter | — | 1995-07-11 |
| 5428320 | Biphase modulator and method without matching elements | Craig E. Lindberg | 1995-06-27 |
| 5424698 | Ferrite-semiconductor resonator and filter | John M. Golio, Robert J. Higgins, Jr., Aristotelis S. Arvanitis | 1995-06-13 |
| 5387547 | Process for adjusting the impedance of a microwave conductor using an air bridge | Richard M. Dougherty, Ronald F. Kielmeyer, Jr., Lyle A. Fajen | 1995-02-07 |
| 5304961 | Impedance transforming directional coupler | — | 1994-04-19 |
| 5210507 | Method and apparatus for harmonic reaction amplifier via directional filter | — | 1993-05-11 |
| 5194833 | Airbridge compensated microwave conductors | Richard M. Dougherty, Ronald F. Kielmeyer, Jr., Lyle A. Fajen | 1993-03-16 |
| 5175517 | Lumped element realization of ring hybrids including .pi. circuit and tank circuit means | Ronald F. Keilmeyer, Jr., John K. Lauchner | 1992-12-29 |
| 5159298 | Microstrip directional coupler with single element compensation | — | 1992-10-27 |
| 5124674 | Lumped element directional filter | Vijay K. Nair | 1992-06-23 |