Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8171616 | Method of making an armature | David J. Smith, John C. Stone, Earl M. Ortt | 2012-05-08 |
| 7908736 | Method of making an armature | David J. Smith, John C. Stone, Earl M. Ortt | 2011-03-22 |
| 6053060 | Two-piece pinion gear | Mauricio Clarke | 2000-04-25 |