Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5351319 | Ferrofluid switch for a light pipe | John Matthew Ginder, Willes H. Weber | 1994-09-27 |
| 5317667 | Electrophoretic switch for a light pipe | Willes H. Weber, John Matthew Ginder | 1994-05-31 |