Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6096119 | Apparatus for using ferrite spacers to suppress arc noise in electrostatic precipitators | Ronald D. Voigts, Charles A. Haynes, James S. Blair | 2000-08-01 |
| 5080699 | Filter apparatus | Robert H. Petty | 1992-01-14 |