Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6571931 | Tamper-resistant vending machine | — | 2003-06-03 |
| 6427772 | Electronic refrigeration control system | Glenn D. Selfridge | 2002-08-06 |
| 6223817 | Electronic refrigeration control system | Glenn D. Selfridge | 2001-05-01 |
| 6213276 | Tamper-resistant vending machine | — | 2001-04-10 |
| 6125989 | Tamper-resistant vending machine | — | 2000-10-03 |
| 5791450 | Tamper-resistant vending machine | — | 1998-08-11 |
| 5713490 | Adjustable vending mechanism | Michael Daniel Ring | 1998-02-03 |
| 5601177 | Tamper-resistant vending machine | — | 1997-02-11 |
| 5547105 | Can vending mechanism | Michael Daniel Ring | 1996-08-20 |
| 5529207 | Adjustable retainer system for vending machine storage compartments | Thomas Uzzle | 1996-06-25 |
| 5511688 | Vending machine dispensing system | David W. Duncan, Larry D. Lee | 1996-04-30 |
| D344410 | Jacket for a coin changer | — | 1994-02-22 |
| 5226521 | Jacket for a coin changer | — | 1993-07-13 |
| 5193862 | Anti-theft latch mechanism especially suitable for vending machines | — | 1993-03-16 |
| 5111962 | Vending apparatus with intelligent dispensation control | — | 1992-05-12 |
| 4705176 | Article vendor with adjustable column transfer provision for accomodating locally-prevalent space-to-sales ratio | — | 1987-11-10 |
| 4509658 | Anti-theft device for tandem column vendor | — | 1985-04-09 |
| 4298138 | Tandem column vender apparatus | — | 1981-11-03 |