Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5790356 | Transformer protection system for protecting source transformers from ill effects of zero-sequence currents | Gerald W. Bottrell | 1998-08-04 |
| 4772977 | System for protection of electrical machines against damage from residual voltage effects | Gerald W. Bottrell | 1988-09-20 |