Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6209931 | Multi-point door locking system | Stephen M. Purcell, Michael D. Smith, Thomas Wright | 2001-04-03 | $62,353,000 |
| 4984473 | Torque monitor | David J. Lang | 1991-01-15 | $1,411,000 |