Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6453157 | Radio frequency tracking filter | — | 2002-09-17 |
| 6219531 | Architecture and frequency plan for a UHF portable radio | John Russell Lane, John Poirier, Robert B. Sanders, William P. Overstreet, Johannes J. Vandegraaf +3 more | 2001-04-17 |
| 5795028 | Modular chair and method | Ralph J. Dussia, Jr., Margaret Hoffman, William A. Calvert, Jr., Duane Dutkievic, Charles R. West +1 more | 1998-08-18 |
| 5594354 | Method for measuring selected frequencies of a coupled-dual resonator crystal | Michael E. Roberts | 1997-01-14 |
| 5587663 | Method for measuring the inductance of each resonator of a coupled-dual resonator crystal | Michael E. Roberts | 1996-12-24 |
| 5272597 | Attachment for surface-mounting a resonator crystal on a circuit board | Alfred G. Staples | 1993-12-21 |
| 5217276 | Chair mechanism | Larry P. LaPointe, Karl J. Komorowski | 1993-06-08 |
| 5146174 | Switching arrangement method and apparatus for making parameter measurement and adjustment of coupled dual resonator crystals using both resonator ports | Samuel Toliver, Myron A. Turner, Jr. | 1992-09-08 |
| 5049828 | Method and apparatus for parameter measurement of coupled-dual resonator crystals | Samuel Toliver | 1991-09-17 |
| 5047726 | Method and apparatus for implementing four-frequency measuring process for coupled-dual resonator crystals using both resonator ports | Samual Toliver, John U. Daniels, Jr. | 1991-09-10 |
| 4839618 | Monolithic crystal filter with wide bandwidth and method of making same | A. Gordon Staples, Samuel Toliver | 1989-06-13 |
| 4833430 | Coupled-dual resonator crystal | Samuel Toliver, Robert J. Crescenzi | 1989-05-23 |
| 4676993 | Method and apparatus for selectively fine-tuning a coupled-dual resonator crystal and crystal manufactured thereby | Samuel Toliver, Robert J. Crescenzi | 1987-06-30 |
| 4627379 | Shutter apparatus for fine-tuning a coupled-dual resonator crystal | Samuel Toliver | 1986-12-09 |
| 4484158 | Monolithic crystal filter and method of manufacturing same | Alfred G. Staples | 1984-11-20 |
| 4477952 | Piezoelectric crystal electrodes and method of manufacture | Robert J. Crescenzi, John U. Daniels, Jr. | 1984-10-23 |
| 4433316 | Crystal filter and method for fabrication | Alfred G. Staples | 1984-02-21 |