Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7642806 | Test apparatus, system, and method with a magnetic feature | David E. Corbett, Alan Langhorn | 2010-01-05 |
| 7199499 | Homopolar machine with brush improvement | Alan Langhorn | 2007-04-03 |
| 6873078 | Homopolar machine with improved brush lifetime | Alan Langhorn, David A. Hazlebeck | 2005-03-29 |