Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4748367 | Contact heater for piezoelectric effect resonator crystal | Martin Bloch | 1988-05-31 | $842,000 |
| 4701661 | Piezoelectric resonators having a lateral field excited SC cut quartz crystal element | Arthur W. Warner | 1987-10-20 | $457,000 |