Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D578117 | Electronic tablet | Robert Freed, William A. S. Buxton, Margaret K. Johnson | 2008-10-07 |
| D577720 | Electronic tablet | Robert Freed, William A. S. Buxton, Margaret K. Johnson | 2008-09-30 |
| 6595780 | Method to detect installed module and select corresponding behavior | Harjit Singh | 2003-07-22 |
| D449352 | Portion of a toy | Steven W. Fisher | 2001-10-16 |
| 5912454 | System and method for detecting a relative change in light intensity | Leonardo Del Castillo | 1999-06-15 |
| 4857878 | Modular high frequency power transformer | Benjamin Eng, Jr. | 1989-08-15 |