Issued Patents 2005
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6967431 | Piezoelectric transducers and methods of manufacture | Steven A. Buhler, Karl A. Littau | 2005-11-22 |
| 6924584 | Piezoelectric transducers utilizing sub-diaphragms | Steven A. Buhler, Meng H. Lean, Karl A. Littau | 2005-08-02 |
| 6843086 | Magic keychain | — | 2005-01-18 |