Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7539869 | System and methods for using a signature protocol by a nonsigning client | Raghavan N. Srinivas | 2009-05-26 |
| 7213262 | Method and system for proving membership in a nested group using chains of credentials | Yassir K. Elley, Anne H. Anderson, Stephen R. Hanna, Radia J. Perlman | 2007-05-01 |
| 7085925 | Trust ratings in group credentials | Stephen R. Hanna, Anne H. Anderson, Yassir K. Elley, Radia J. Perlman | 2006-08-01 |
| 7058798 | Method ans system for pro-active credential refreshing | Yassir K. Elley, Anne H. Anderson, Stephen R. Hanna, Radia J. Perlman | 2006-06-06 |
| 7054905 | Replacing an email attachment with an address specifying where the attachment is stored | Stephen R. Hanna, David C. Douglas, Yassir K. Elley, Radia J. Perlman, Anne H. Anderson | 2006-05-30 |
| 6883100 | Method and system for dynamic issuance of group certificates | Yassir K. Elley, Anne H. Anderson, Stephen R. Hanna, Radia J. Perlman | 2005-04-19 |
| 6801998 | Method and apparatus for presenting anonymous group names | Stephen R. Hanna, Anne H. Anderson, Yassir K. Elley, Radia J. Perlman | 2004-10-05 |
| 6263434 | Signed group criteria | Stephen R. Hanna, Anne H. Anderson, Yassir K. Elley, Radia J. Perlman | 2001-07-17 |