Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7383194 | Software based stamp dispenser | Richard W. Heiden, Chunhua Li | 2008-06-03 |
| 6466921 | Virtual postage meter with secure digital signature device | Robert A. Cordery, David K. Lee, Frank M. D'Ippolito | 2002-10-15 |
| 6438530 | Software based stamp dispenser | Richard W. Heiden, Chunhua Li | 2002-08-20 |
| 6055520 | Mailpiece imprinted with a delivery address only in a form which is not human readable and method and system for producing same | Richard W. Heiden | 2000-04-25 |
| 5815606 | Method for thresholding a gray scale matrix | Walter J. Baker | 1998-09-29 |
| 5812666 | Cryptographic key management and validation system | Walter J. Baker, Feliks Bator, Robert A. Cordery, Kevin D. Hunter, Kathryn V. Lawton +5 more | 1998-09-22 |
| 5742682 | Method of manufacturing secure boxes in a key management system | Walter J. Baker, Robert A. Cordery, Frank M. D'Ippolito, Kathyrn V. Lawton, Steven J. Pauly | 1998-04-21 |
| 5710707 | Postage metering system including primary accounting means and means for accessing secondary accounting means | — | 1998-01-20 |