Issued Patents All Time
Showing 51–73 of 73 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6542083 | Electronic tag position detection using radio broadcast | Roy Want, Kenneth P. Fishkin, Beverly L. Harrison, Anuj Uday Gujar | 2003-04-01 |
| 6507333 | Tribo-addressed and tribo-supperessed electric paper | James C. Mikkelsen, Nicholas K. Sheridon | 2003-01-14 |
| 6485280 | Methods and apparatus for fabricating bichromal elements | — | 2002-11-26 |
| 6456272 | Field addressed displays using charge discharging in conjunction with charge retaining island structures | Matthew E. Howard | 2002-09-24 |
| 6362915 | Bichromal beads having crystalline materials therein | Nicholas K. Sheridon, James C. Mikkelsen | 2002-03-26 |
| 6348908 | Ambient energy powered display | Alexander E. Silverman, Matthew E. Howard, Bryan T. Preas | 2002-02-19 |
| 6312104 | Reduction of spot misplacement through electrostatic focusing of uncharged drops | Richard G. Stearns | 2001-11-06 |
| 6243058 | Tribo-addressed and tribo-suppressed electric paper | James C. Mikkelsen, Nicholas K. Sheridon | 2001-06-05 |
| 6222513 | Charge retention islands for electric paper and applications thereof | Matthew E. Howard, Robert A. Sprague | 2001-04-24 |
| 6184789 | Method and apparatus for visually determining object location | Mark D. Weiser, Alexander E. Silverman, Matthew E. Howard, Bryan T. Preas | 2001-02-06 |
| 6137467 | Optically sensitive electric paper | Nicholas K. Sheridon | 2000-10-24 |
| 5976428 | Method and apparatus for controlling formation of two-color balls for a twisting ball display | — | 1999-11-02 |
| 5900192 | Method and apparatus for fabricating very small two-color balls for a twisting ball display | — | 1999-05-04 |
| 5900858 | Rotation mechanism for bichromal balls of a twisting ball display sheet based on contact potential charging | — | 1999-05-04 |
| 5815306 | """Eggcrate"" substrate for a twisting ball display" | Nicholas K. Sheridon, Linda Romano, James C. Mikkelsen, Joseph M. Crowley | 1998-09-29 |
| 5752677 | Block occupancy detector for model railroads | — | 1998-05-19 |
| 5437057 | Wireless communications using near field coupling | Lawrence L. Butcher | 1995-07-25 |
| 5262098 | Method and apparatus for fabricating bichromal balls for a twisting ball display | Joseph M. Crowley, Nicholas K. Sheridon | 1993-11-16 |
| 5223755 | Extended frequency range variable delay locked loop for clock synchronization | — | 1993-06-29 |
| 5222075 | Transmitted code clock code-matching synchronization for spread-spectrum communication systems | — | 1993-06-22 |
| 5122818 | Acoustic ink printers having reduced focusing sensitivity | Scott A. Elrod, Eric G. Rawson | 1992-06-16 |
| 5101417 | Phase controlled synchronization for direct sequence spread-spectrum communication systems | Richard M. Barth | 1992-03-31 |
| 5025793 | Finger blood pressure measurement system | Christopher Russell | 1991-06-25 |