Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6808785 | Synthetic roofing shingle or tile | Husnu M. Kalkanoglu, Joong Youn Kim, Thomas Kevin MacKinnon | 2004-10-26 |
| 6726979 | Protective glazing laminate | Glenn Visscher | 2004-04-27 |