Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6760978 | Surface groove system for building sheets | — | 2004-07-13 |
| 6689451 | Pre-finished and durable building material | Weiling Peng, Donald J. Merkley | 2004-02-10 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6760978 | Surface groove system for building sheets | — | 2004-07-13 |
| 6689451 | Pre-finished and durable building material | Weiling Peng, Donald J. Merkley | 2004-02-10 |