Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5872419 | Piezoelectric transformer with voltage feedback | Dale G. Hall, James R. Phillips, Gary Vaughn, Donald W. Forst | 1999-02-16 |
| 5866968 | Single-input phase locking piezoelectric transformer driving circuit | — | 1999-02-02 |
| 4955059 | Speaker power matching method and apparatus | — | 1990-09-04 |
| 4334343 | Method of making crystal mounting and connection arrangement | Emory Wakat, Jr., Lawrence N. Dworsky, Leo V. Krolak, Jeffery A. Whalin | 1982-06-15 |
| 4282454 | Piezoelectric crystal mounting and connection arrangement | Emory Wakat, Jr., Lawrence N. Dworsky, Leo V. Krolak, Jeffery A. Whalin | 1981-08-04 |