Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6532090 | Wavelength selective cross-connect with reduced complexity | Christopher Doerr, Benny Mikkelsen, Martin Zirngibl | 2003-03-11 |
| 6487332 | Strictly non-blocking wavelength division multiplexed (WDM) cross-connect device for use in a heterogeneous network | April Patricia Rasala | 2002-11-26 |
| 6408093 | Method for comparing object ranking schemes | Jianying Hu, Ramanujan Kashi | 2002-06-18 |
| 6381046 | Routing method for ring networks, such as WDM ring networks for optical communication | Peter M. Winkler | 2002-04-30 |
| 5940511 | Method and apparatus for secure PIN entry | — | 1999-08-17 |
| 5930380 | Method and apparatus for verifying static signatures using dynamic information | Ramanujan Kashi, Winston Lowell Nelson | 1999-07-27 |
| 5898156 | Validation stamps for electronic signatures | — | 1999-04-27 |
| 5838819 | System and method for processing and managing electronic copies of handwritten notes | Laurence W. Ruedisueli | 1998-11-17 |
| 5754652 | Method and apparatus for secure pin entry | — | 1998-05-19 |
| 5537489 | Method of normalizing handwritten symbols | Frank W. Sinden | 1996-07-16 |
| 5333209 | Method of recognizing handwritten symbols | Frank W. Sinden | 1994-07-26 |