Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5085368 | System for controlling poultry house window closures | John B. Beckman | 1992-02-04 |
| 4845586 | High power tunable capacitor | — | 1989-07-04 |
| 4733198 | Mechanically tunable sealed microwave oscillator | Lynn Carpenter | 1988-03-22 |
| 4620169 | Magnetically tunable dielectric resonator having a magnetically saturable shield | — | 1986-10-28 |
| 4519751 | Piezoelectric pump with internal load sensor | John B. Beckman | 1985-05-28 |
| 4490772 | Voltage and mechanically variable trimmer capacitor | — | 1984-12-25 |
| 4459635 | Multi-turn trimmer | John B. Beckman | 1984-07-10 |
| 4449893 | Apparatus and method for piezoelectric pumping | John B. Beckman | 1984-05-22 |
| 4432699 | Peristaltic piezoelectric pump with internal load sensor | John B. Beckman | 1984-02-21 |
| 4415949 | Air trimmer capacitor | — | 1983-11-15 |