Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7539648 | Secure user certification for electronic commerce employing value metering system | Robert A. Cordery, David K. Lee, Leon A. Pintsov, Frederick W. Ryan, Jr. | 2009-05-26 |
| 7080044 | PC-based open metering system and method | Robert A. Cordery, David K. Lee, Steven J. Pauly, Leon A. Pintsov, David W. Riley +1 more | 2006-07-18 |
| 6985888 | Secure user certification for electronic commerce employing value metering system | Robert A. Cordery, David K. Lee, Leon A. Pintsov, Frederick W. Ryan, Jr. | 2006-01-10 |
| 6907399 | Secure user certification for electronic commerce employing value metering system | Robert A. Cordery, David K. Lee, Leon A. Pintsov, Frederick W. Ryan, Jr. | 2005-06-14 |
| 6898581 | Secure user certification for electronic commerce employing value metering system | Robert A. Cordery, David K. Lee, Leon A. Pintsov, Frederick W. Ryan Jr. | 2005-05-24 |
| 6865557 | Network open metering system | Robert A. Cordery, David K. Lee, Steven J. Pauly, Leon A. Pintsov, David W. Riley +1 more | 2005-03-08 |
| 6839693 | System for detecting mail pieces with duplicate indicia | Robert A. Cordery | 2005-01-04 |
| 6792531 | Method and system for revocation of certificates used to certify public key users | Richard W. Heiden | 2004-09-14 |
| 6748535 | System and method for suppressing conducted emissions by a cryptographic device comprising an integrated circuit | Frederick W. Ryan, Jr., Edward J. Twarog | 2004-06-08 |
| 6594760 | System and method for suppressing conducted emissions by a cryptographic device | Frederick W. Ryan, Jr., Edward J. Twarog | 2003-07-15 |
| 6575362 | Secure money order issuing kiosk | Feliks Bator, William Berson, John L. Campo, Kathryn V. Lawton, Andrei Obrea +1 more | 2003-06-10 |
| 6430543 | Controlled acceptance mail fraud detection system | David K. Lee, Leon A. Pintsov | 2002-08-06 |
| 6363484 | Method of verifying unreadable indicia for an information-based indicia program | Robert A. Cordery, Richard W. Heiden, Leon A. Pintsov, Brian M. Romansky | 2002-03-26 |
| 6157919 | PC-based open metering system and method | Robert A. Cordery, David K. Lee, Steven J. Pauly, Leon A. Pintsov, David W. Riley +1 more | 2000-12-05 |
| 6151590 | Network open metering system | Robert A. Cordery, David K. Lee, Steven J. Pauly, Leon A. Pintsov, David W. Riley +1 more | 2000-11-21 |
| 6134328 | Secure user certification for electronic commerce employing value metering system | Robert A. Cordery, David K. Lee, Leon A. Pintsov, Frederick W. Ryan, Jr. | 2000-10-17 |
| 6058193 | System and method of verifying cryptographic postage evidencing using a fixed key set | Robert A. Cordery, David K. Lee, Steven J. Pauly, Leon A. Pintsov, Frederick W. Ryan, Jr. | 2000-05-02 |
| 6044350 | Certificate meter with selectable indemnification provisions | Frederick W. Ryan, Jr. | 2000-03-28 |
| 5982896 | System and method of verifying cryptographic postage evidencing using a fixed key set | Robert A. Cordery, David K. Lee, Steven J. Pauly, Leon A. Pintsov, Frederick W. Ryan, Jr. | 1999-11-09 |
| 5974147 | Method of verifying unreadable indicia for an information-based indicia program | Robert A. Cordery, Richard W. Heiden, Leon A. Pintsov, Brian M. Romansky | 1999-10-26 |
| 5826246 | Secure postage meter in an ATM application | Feliks Bator, William Berson, John L. Campo, Kathryn V. Lawton, Andrei Obrea +1 more | 1998-10-20 |
| 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 |
| 5796841 | Secure user certification for electronic commerce employing value metering system | Robert A. Cordery, David K. Lee, Leon A. Pintsov, Frederick W. Ryan, Jr. | 1998-08-18 |
| 5768132 | 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 | Robert A. Cordery, Leon A. Pintsov | 1998-06-16 |
| 5675650 | Controlled acceptance mail payment and evidencing system | Robert A. Cordery, Linda V. Gravell, Leon A. Pintsov | 1997-10-07 |