Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6804006 | Color sample holder to enhance repeatability of instrumental color readings | David Lee Griffus | 2004-10-12 |
| 6719452 | Process for manufacturing transparent tints | Ken Stephen Schermacher, Anthony Joseph Martino, Douglas Spahr, Timothy Aaron Snyder | 2004-04-13 |