Issued Patents 2003
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6612684 | Method for determining a printer's signature to provide proof that the printer printed a particular document | Donald G. Mackay, Claude Zeller | 2003-09-02 |
| 6613571 | Method and system for detecting biological and chemical hazards in mail | Karin A. Russo, Ronald P. Sansone | 2003-09-02 |
| 6567794 | Method for access control in a virtual postage metering system | Frank M. D'Ippolito | 2003-05-20 |
| 6533385 | Method for determining a printer's signature and the number of dots per inch printed in a document to provide proof that the printer printed a particular document | Donald G. Mackay, Claude Zeller, Hugh L. Brunk | 2003-03-18 |
| 6526391 | System and method for controlling a postage metering system using data required for printing | Leon A. Pintsov | 2003-02-25 |