Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7235980 | Cable detection apparatus and method | Richard David Pearson | 2007-06-26 |
| 7184951 | Methods and systems for generating phase-derivative sound | John Mark Royle, Richard David Pearson | 2007-02-27 |
| 6977508 | Cable detection apparatus and method | Richard David Pearson | 2005-12-20 |