Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D515319 | Brush | Marcel Belt, Leonard Spitzer, John E. Studer | 2006-02-21 |
| D498057 | Cleaning brush | Marcel Belt, Ian Corkhill, Leonard Spitzer, John E. Studer | 2004-11-09 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D515319 | Brush | Marcel Belt, Leonard Spitzer, John E. Studer | 2006-02-21 |
| D498057 | Cleaning brush | Marcel Belt, Ian Corkhill, Leonard Spitzer, John E. Studer | 2004-11-09 |