Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7936670 | System, method and program to control access to virtual LAN via a switch | John Paul Cazares, Jade W. Clifford, Charles S. Lingafelt | 2011-05-03 |
| 7707633 | Applying blocking measures progressively to malicious network traffic | Robert Danford, Kenneth M. Farmer, Clark Debs Jeffries, Michael Walter | 2010-04-27 |
| 7523496 | Authenticating without opening electronic mail | John H. Bickford, Charles S. Lingafelt | 2009-04-21 |
| 7308716 | Applying blocking measures progressively to malicious network traffic | Robert Danford, Kenneth M. Farmer, Clark Debs Jeffries, Michael Walter | 2007-12-11 |
| 7007169 | Method and apparatus for protecting a web server against vandals attacks without restricting legitimate access | Charles S. Lingafelt, John J. McKenna | 2006-02-28 |