Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7739729 | Electronic security system and scheme for a communications network | Shawn S. Cornelius, Clifford Donoughe, Arnold Z. Huffman, Matthew C. Klug, Richard R. Krahn +4 more | 2010-06-15 |
| 7481922 | Fluid treatment apparatus | — | 2009-01-27 |
| 7254833 | Electronic security system and scheme for a communications network | Shawn S. Cornelius, Clifford Donoughe, Arnold Z. Huffman, Matthew C. Klug, Richard R. Krahn +4 more | 2007-08-07 |