Issued Patents All Time
Showing 26–49 of 49 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5042288 | Method of sensing contamination in the atmosphere | — | 1991-08-27 |
| 4899117 | High accuracy frequency standard and clock system | — | 1990-02-06 |
| H580 | Method and apparatus for growing high perfection quartz | — | 1989-02-07 |
| 4761298 | Method of precisely adjusting the frequency of a piezoelectric resonator | — | 1988-08-02 |
| 4741076 | Method of making a high stability quartz crystal oscillator | — | 1988-05-03 |
| 4638536 | Method of making a resonator having a desired frequency from a quartz crystal resonator plate | — | 1987-01-27 |
| 4575690 | Acceleration insensitive oscillator | Fred L. Walls | 1986-03-11 |
| 4554717 | Method of making miniature high frequency SC-cut quartz crystal resonators | Arthur Ballato | 1985-11-26 |
| 4539532 | Method of minimizing the aging rate of an oscillator | — | 1985-09-03 |
| 4493991 | Techniques for locating beams within large area detectors | John G. Gualtieri | 1985-01-15 |
| 4451755 | Acceleration sensitivity reduction method | Raymond L. Filler | 1984-05-29 |
| 4416726 | Method and apparatus for correcting the angles of cut of quartz plates | — | 1983-11-22 |
| 4412172 | Method of measuring the thermal properties of a resonator | — | 1983-10-25 |
| 4409711 | Method of fabricating acceleration resistant crystal resonators | Arthur Ballato | 1983-10-18 |
| 4381471 | SC-Cut quartz resonators with suppressed b-mode | Raymond L. Filler | 1983-04-26 |
| 4375604 | Method of angle correcting doubly rotated crystal resonators | — | 1983-03-01 |
| 4365182 | Method of fabricating acceleration resistant crystal resonators and acceleration resistant crystal resonators so formed | Arthur Ballato | 1982-12-21 |
| 4354133 | Hermetically sealed container | — | 1982-10-12 |
| 4344010 | Acceleration resistant combination of opposite-handed piezoelectric crystals | Arthur Ballato | 1982-08-10 |
| 4311938 | Method of sweeping quartz | Arthur Ballato | 1982-01-19 |
| 4274907 | Method of chemically polishing a doubly rotated quartz plate | Ronald J. Brandmayr | 1981-06-23 |
| 4263702 | Method of making a quartz resonator | Raymond L. Filler, R. Donald Peters, James M. Frank | 1981-04-28 |
| 4259606 | Fast warm-up oven controlled piezoelectric oscillator | — | 1981-03-31 |
| 4255228 | Method of growing quartz | — | 1981-03-10 |