Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7893362 | Smoke-resistant surface mount box for plenum space | Daan Feng | 2011-02-22 |
| 4785276 | Voltage multiplier varistor | — | 1988-11-15 |
| 4706060 | Surface mount varistor | — | 1987-11-10 |
| 4397773 | Varistor with tetragonal antimony zinc oxide additive | — | 1983-08-09 |
| 4371860 | Solderable varistor | Steven R. Zohler | 1983-02-01 |