Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7495366 | Compact slip ring incorporating fiber-on-tips contact technology | Michael J. Day, Norris E. Lewis, Jerry T. Perdue, Larry D. Vaught, Barry K. Witherspoon | 2009-02-24 |
| 7339302 | Electrical contact technology and methodology for the manufacture of large-diameter electrical slip rings | Norris E. Lewis, Jerry T. Perdue, Larry D. Vaught, Barry K. Witherspoon | 2008-03-04 |
| 7105983 | Electrical contact technology and methodology for the manufacture of large-diameter electrical slip rings | Michael J. Day, Norris E. Lewis, Jerry T. Perdue, Larry D. Vaught, Barry K. Witherspoon | 2006-09-12 |