Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7021491 | Freezer door opener/closer for a vending machine | David K. Giegerich, Munroe Chirnomas | 2006-04-04 |
| 5884745 | Pivot keypad and dual interface for multiple price and size setting vending machine | Jeffery Kalis, Thomas Roger Meinardi, Lloyd D. Herring | 1999-03-23 |
| 5511646 | Multiple price and size setting method for vending machines | Algert J. Maldanis, David K. Giegerich | 1996-04-30 |
| 5407264 | Drive mechanism for moving a horizontal shelf in a vending machine | David K. Giegerich, Algert J. Maldanis | 1995-04-18 |
| 5344046 | Universal pull-out drawer for vending machine | Algert J. Maldanis, Walter Koch, David K. Giegerich | 1994-09-06 |
| 4580697 | Cup drop ring for drink machine | Thomas J. Maulshagen | 1986-04-08 |
| 4351452 | Turret cup supply and delivery apparatus | Frank T. Scalera | 1982-09-28 |