Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8611192 | Elapsed time clock | Nancy Balter | 2013-12-17 |
| 5851118 | Digital and analog teaching clock | Richard Woldenberg | 1998-12-22 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8611192 | Elapsed time clock | Nancy Balter | 2013-12-17 |
| 5851118 | Digital and analog teaching clock | Richard Woldenberg | 1998-12-22 |