Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6587550 | METHOD AND APPARATUS FOR ENABLING A FEE TO BE CHARGED TO A PARTY INITIATING AN ELECTRONIC MAIL COMMUNICATION WHEN THE PARTY IS NOT ON AN AUTHORIZATION LIST ASSOCIATED WITH THE PARTY TO WHOM THE COMMUNICATION IS DIRECTED | Daniel Santos | 2003-07-01 |
| 6483910 | Method and apparatus for charging a fee to a party initiating a telephone call when the party is not on an authorization list associated with the called party | — | 2002-11-19 |
| 6259779 | Method and apparatus for generating and/or updating an authorization list associated with a telephone subscriber | Daniel Santos | 2001-07-10 |
| 6192114 | Method and apparatus for billing a fee to a party initiating an electronic mail communication when the party is not on an authorization list associated with the party to whom the communication is directed | — | 2001-02-20 |