Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7931248 | Flat mold for corner-shaped simulated stone products | Michelle L. Korwin-Edson, Douglas H. Walden, Larry E. Targett | 2011-04-26 |
| 7654502 | Apparatus for simulated stone products | Douglas H. Walden | 2010-02-02 |