Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6899769 | Composition and method for metal coloring process | William V. Block | 2005-05-31 |
| 6695931 | Composition and method for metal coloring process | William V. Block | 2004-02-24 |
| 6576346 | Composition and method for metal coloring process | William V. Block | 2003-06-10 |
| 6527873 | Composition and method for metal coloring process | William V. Block | 2003-03-04 |
| 6309476 | Composition and method for metal coloring process | William V. Block | 2001-10-30 |