Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7561735 | System and process for identifying, choosing and matching colors | Susan Levin | 2009-07-14 |
| D493831 | Tonal color wheel | Susan Levin | 2004-08-03 |
| 6139325 | Device for determining color combinations | Susan Levin | 2000-10-31 |