Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5047726 | Method and apparatus for implementing four-frequency measuring process for coupled-dual resonator crystals using both resonator ports | Gerald E. Roberts, Samual Toliver | 1991-09-10 |
| 4477952 | Piezoelectric crystal electrodes and method of manufacture | Robert J. Crescenzi, Gerald E. Roberts | 1984-10-23 |