Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8831992 | Apparatus and method for facilitating cryptographic key management services | Jonathan D. Callas | 2014-09-09 |
| 7640427 | System and method for secure electronic communication in a partially keyless environment | Jonathan D. Callas, David E. Allen | 2009-12-29 |
| 7383439 | Apparatus and method for facilitating encryption and decryption operations over an email server using an unsupported protocol | David E. Allen, Jonathan D. Callas | 2008-06-03 |
| 7054447 | Method and apparatus for periodically removing invalid public keys from a public key server | — | 2006-05-30 |
| 6978025 | Method and apparatus for managing public keys through a server | — | 2005-12-20 |
| 6851049 | Method and apparatus for facilitating secure anonymous email recipients | — | 2005-02-01 |
| 6662299 | Method and apparatus for reconstituting an encryption key based on multiple user responses | — | 2003-12-09 |