Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7131532 | Belt attachment device and method | Mark R. Webster | 2006-11-07 |
| 6896125 | Belt attachment device and method | Mark R. Webster | 2005-05-24 |
| 6644210 | Shopping cart conveyor with front wheel alignment and turning system | Robert H. Pfleger, Michael Sohn | 2003-11-11 |
| 6490979 | Inclined shopping cart conveyor system | Robert H. Pfleger, Michael Sohn | 2002-12-10 |