Patent | Date |
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Secure user certification for electronic commerce employing value metering system Grant 7,539,648 - Cordery , et al. May 26, 2 | 2009-05-26 |
PC-based open metering system and method Grant 7,080,044 - Cordery , et al. July 18, 2 | 2006-07-18 |
Secure user certification for electronic commerce employing value metering system Grant 6,985,888 - Cordery , et al. January 10, 2 | 2006-01-10 |
Secure user certification for electronic commerce employing value metering system Grant 6,907,399 - Cordery , et al. June 14, 2 | 2005-06-14 |
Secure user certification for electronic commerce employing value metering system Grant 6,898,581 - Cordery , et al. May 24, 2 | 2005-05-24 |
Network open metering system Grant 6,865,557 - Cordery , et al. March 8, 2 | 2005-03-08 |
System for detecting mail pieces with duplicate indicia Grant 6,839,693 - Cordery , et al. January 4, 2 | 2005-01-04 |
Method and system for revocation of certificates used to certify public key users Grant 6,792,531 - Heiden , et al. September 14, 2 | 2004-09-14 |
System and method for suppressing conducted emissions by a cryptographic device comprising an integrated circuit Grant 6,748,535 - Ryan, Jr. , et al. June 8, 2 | 2004-06-08 |
Secure money order issuing kiosk Grant 6,575,362 - Bator , et al. June 10, 2 | 2003-06-10 |
Controlled acceptance mail fraud detection system Grant 6,430,543 - Lee , et al. August 6, 2 | 2002-08-06 |
PC-based open metering system and method Grant 6,157,919 - Cordery , et al. December 5, 2 | 2000-12-05 |
Network open metering system Grant 6,151,590 - Cordery , et al. November 21, 2 | 2000-11-21 |
Secure user certification for electronic commerce employing value metering system Grant 6,134,328 - Cordery , et al. October 17, 2 | 2000-10-17 |
System and method of verifying cryptographic postage evidencing using a fixed key set Grant 6,058,193 - Cordery , et al. May 2, 2 | 2000-05-02 |
Certificate meter with selectable indemnification provisions Grant 6,044,350 - Weiant, Jr. , et al. March 28, 2 | 2000-03-28 |
System and method of verifying cryptographic postage evidencing using a fixed key set Grant 5,982,896 - Cordery , et al. November 9, 1 | 1999-11-09 |
Secure postage meter in an ATM application Grant 5,826,246 - Bator , et al. October 20, 1 | 1998-10-20 |
Cryptographic key management and validation system Grant 5,812,666 - Baker , et al. September 22, 1 | 1998-09-22 |
Secure user certification for electronic commerce employing value metering system Grant 5,796,841 - Cordery , et al. August 18, 1 | 1998-08-18 |
Controlled acceptance mail system securely enabling reuse of digital token initially generated for a mailpiece on a subsequently prepared different mailpiece to authenticate payment of postage Grant 5,768,132 - Cordery , et al. June 16, 1 | 1998-06-16 |
Controlled acceptance mail payment and evidencing system Grant 5,675,650 - Cordery , et al. October 7, 1 | 1997-10-07 |
Method of token verification in a key management system Grant 5,661,803 - Cordery , et al. August 26, 1 | 1997-08-26 |