Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6870338 | Magnetic encoder for powered window covering | Winston G. Walker | 2005-03-22 | $9,818,000 |
| 4982350 | System for precise measurement of time intervals | Nicholas A. Perna | 1991-01-01 |