Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8868761 | System and method for maintaining presence and communicating over a computer network using the HTTP protocol | Paul S. Eftis | 2014-10-21 |
| 8423649 | System and method for maintaining presence and communicating over a computer network using the HTTP protocol | Paul S. Eftis | 2013-04-16 |
| 7636784 | System and method for maintaining presence and communicating over a computer network using the HTTP protocol | Paul S. Eftis | 2009-12-22 |
| 7631087 | System and method for maintaining presence and communicating over a computer network using the HTTP protocol | Paul S. Eftis | 2009-12-08 |
| 7171473 | System using HTTP protocol for maintaining and updating on-line presence information of new user in user table and group table | Paul S. Eftis | 2007-01-30 |