Issued Patents All Time
Showing 51–58 of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D480760 | Frame for display element | Horst Sonnendorfer | 2003-10-14 |
| 5951029 | Transport cart with deposit lock | Horst Sonnendorfer | 1999-09-14 |
| 5425438 | Deposit lock and token for a transport cart | Horst Sonnendorfer | 1995-06-20 |
| 5406271 | System for supplying various departments of large self-service stores with department-specific information | Horst Sonnendorfer | 1995-04-11 |
| 5388667 | Unloading system for shopping carts | Horst Sonnendorfer | 1995-02-14 |
| 5259633 | Transport cart with coin-operated lock | Horst Sonnendorfer | 1993-11-09 |
| 5180045 | Securing device for carts | Horst Sonnendorfer | 1993-01-19 |
| 4635782 | Safety arrangement | Horst Sonnendorfer | 1987-01-13 |