Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6477421 | Method and apparatus for position and motion sensing | Marc H. Ryat | 2002-11-05 |
| 6356085 | Method and apparatus for converting capacitance to voltage | Marc H. Ryat | 2002-03-12 |