Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5923002 | Acoustical room paneling and method of installation | Ralph D. McGrath, Harry Alter, Jeffrey A. Tilton | 1999-07-13 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5923002 | Acoustical room paneling and method of installation | Ralph D. McGrath, Harry Alter, Jeffrey A. Tilton | 1999-07-13 |