Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7445215 | Theft defeating improvements for shopping carts | Patrick Maandag, Harold Duffy | 2008-11-04 |
| 7322582 | Enhanced shopping cart with lowered center of gravity and frame therefor | Patrick Maandag | 2008-01-29 |
| 7246814 | Multi-level hand cart | Miguel Orozco | 2007-07-24 |
| 7182349 | Shopping cart with lowered center of gravity and frame therefor | Patrick Maandag | 2007-02-27 |
| 6869097 | Multi-level hand cart with access door | Miguel Orozco | 2005-03-22 |
| 6866289 | Multi-level personal hand cart | — | 2005-03-15 |
| D493932 | Shopping cart frame assembly | Patrick Maandag | 2004-08-03 |
| D493594 | Shopping cart frame and basket assembly having a lowered center of gravity | Patrick Maandag | 2004-07-27 |
| 6271755 | Shopping cart with improved theft disabling device | Miguel Orozco, Patrick Maandag, Harold Duffy | 2001-08-07 |
| 6054923 | Shopping cart with theft disabling device | Patrick Maandag, Harold Duffy | 2000-04-25 |
| 5669821 | Video augmented amusement rides | Richard T. Headrick | 1997-09-23 |