Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8812353 | Method and apparatus for parking lot metering | William Gibbens Redmann | 2014-08-19 |
| 8622289 | Method and apparatus for credit card tracking at pay stations | William Gibbens Redmann | 2014-01-07 |
| 8511539 | Method and apparatus for parking lot metering | William Gibbens Redmann | 2013-08-20 |
| 7984852 | Recharge electrical apparatus and method for electric vehicles | — | 2011-07-26 |
| 6612494 | Product authentication system | — | 2003-09-02 |
| 6536672 | Product authentication system and method | — | 2003-03-25 |
| 6354501 | Composite authentication mark and system and method for reading the same | Mark H. Helmick | 2002-03-12 |
| 6274873 | Spectrum analyzer for reading authentication marks | Mark H. Helmick | 2001-08-14 |
| 6203069 | Label having an invisible bar code applied thereon | Robert Loop | 2001-03-20 |
| 4662730 | Scanning keratometers | Alan Robinson | 1987-05-05 |