Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8548625 | Optical vend sensing system for product delivery detection | David Whitten, William Edwin Booth, Brian Lee Duncan | 2013-10-01 |
| 8046100 | Method and system for accomplishing product detection | David Whitten, William Edwin Booth, Brian Lee Duncan | 2011-10-25 |
| 7980418 | Method and system for accomplishing product detection | David Whitten, William Edwin Booth, Brian Lee Duncan | 2011-07-19 |
| 7787988 | Method and system for accomplishing product detection | David Whitten, William Edwin Booth, Brian Lee Duncan | 2010-08-31 |
| 7286901 | Method and system for accomplishing product detection | David Whitten, William Edwin Booth, Brian Lee Duncan | 2007-10-23 |
| 7191034 | Method and system for accomplishing product detection | David Whitten, William Edwin Booth, Brian Lee Duncan | 2007-03-13 |
| 6732014 | System for accomplishing product detection | David Whitten, William Edwin Booth, Brian Lee Duncan | 2004-05-04 |
| 5360134 | Multiple-product merchandising machine | Leonard P. Falk | 1994-11-01 |
| 5316117 | Bill validator with anti-stringing shut-down feature | Paul Smith | 1994-05-31 |
| 5285926 | Multiple-product merchandising machine | Leonard P. Falk | 1994-02-15 |
| 5169027 | Multiple-product merchandising machine | Leonard P. Falk | 1992-12-08 |
| 5048717 | Multiple-product merchandizing machine | Leonard P. Falk | 1991-09-17 |
| 4936435 | Coin validating apparatus and method | — | 1990-06-26 |
| 4927051 | Multiple-product merchandising machine | Leonard P. Falk | 1990-05-22 |
| 4512453 | Vendor accountability system | James T. Schuller, Nai H. Mak | 1985-04-23 |
| 4512454 | Coin apparatus having coin escrow and return means | James T. Schuller, Barry L. Smith | 1985-04-23 |
| 4330758 | Synchronized frequency synthesizer with high speed lock | Scott N. Swisher, Richard E. Barnett | 1982-05-18 |
| 4224568 | Frequency to digital converter | — | 1980-09-23 |
| 4219244 | Fault detector for wheel slip control system | Joseph E. Fleagle | 1980-08-26 |