Issued Patents All Time
Showing 51–75 of 81 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6367019 | Copy security for portable music players | Steven T. Ansell, Andrew R. Cherenson, Mark E. Paley, Steven Katz, John Michael Kelsey, Jr. | 2002-04-02 |
| 6345090 | Conditional purchase offer management system for telephone calls | Jay S. Walker, Thomas M. Sparico | 2002-02-05 |
| 6325284 | Device and method for promoting the selection and use of a credit card | Jay S. Walker, Magdalena Mik | 2001-12-04 |
| 6289453 | Method and apparatus for secure measurement certification | Jay S. Walker, James A. Jorasch | 2001-09-11 |
| 6282648 | Method and apparatus for secure measurement certification | Jay S. Walker, James A. Jorasch | 2001-08-28 |
| 6264557 | Method and apparatus for securing electronic games | Jay S. Walker, James A. Jorasch | 2001-07-24 |
| 6263438 | Method and apparatus for secure document timestamping | Jay S. Walker, James A. Jorasch | 2001-07-17 |
| 6249865 | Systems and methods for a user to access digital data provided by an on-line server over a data network | Jay S. Walker | 2001-06-19 |
| 6240396 | Conditional purchase offer management system for event tickets | Jay S. Walker, Robert R. Lech, Andrew S. Van Luchene, Thomas M. Sparico, James A. Jorasch | 2001-05-29 |
| 6203427 | Method and apparatus for securing a computer-based game of chance | Jay S. Walker, James A. Jorasch, Andrew S. Van Luchene | 2001-03-20 |
| 6163771 | Method and device for generating a single-use financial account number | Jay S. Walker, Sanjay K. Jindal, Daniel E. Tedesco | 2000-12-19 |
| 6134534 | Conditional purchase offer management system for cruises | Jay S. Walker, Thomas M. Sparico, T. Scott Case | 2000-10-17 |
| 6119229 | Virtual property system | Ronald Martinez, Greg Guerin | 2000-09-12 |
| 6111953 | Method and apparatus for authenticating a document | Jay S. Walker, James A. Jorasch | 2000-08-29 |
| 6099408 | Method and apparatus for securing electronic games | Jay S. Walker, James A. Jorasch | 2000-08-08 |
| 6085169 | Conditional purchase offer management system | Jay S. Walker, James A. Jorasch, T. Scott Case | 2000-07-04 |
| 6024640 | Off-line remote lottery system | Jay S. Walker | 2000-02-15 |
| 5978475 | Event auditing system | John Michael Kelsey, Jr. | 1999-11-02 |
| 5970143 | Remote-auditing of computer generated outcomes, authenticated billing and access control, and software metering system using cryptographic and other protocols | Jay S. Walker, James A. Jorasch | 1999-10-19 |
| 5956404 | Digital signature with auditing bits | John Michael Kelsey, Jr. | 1999-09-21 |
| 5947747 | Method and apparatus for computer-based educational testing | Jay S. Walker, James A. Jorasch | 1999-09-07 |
| 5923763 | Method and apparatus for secure document timestamping | Jay S. Walker, James A. Jorasch | 1999-07-13 |
| 5884272 | Method and system for establishing and maintaining user-controlled anonymous communications | Jay S. Walker, T. Scott Case | 1999-03-16 |
| 5884270 | Method and system for facilitating an employment search incorporating user-controlled anonymous communications | Jay S. Walker, T. Scott Case | 1999-03-16 |
| 5871398 | Off-line remote system for lotteries and games of skill | Jay S. Walker, James A. Jorasch | 1999-02-16 |