Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8645869 | List building system | James D. Hempleman, Sandra M. Hempleman | 2014-02-04 |
| 8126923 | List building system | James D. Hempleman, Sandra M. Hempleman | 2012-02-28 |
| 7877352 | List building system | James D. Hempleman, Sandra M. Hempleman | 2011-01-25 |
| 7814133 | List building system | James D. Hempleman, Sandra M. Hempleman | 2010-10-12 |
| 7814135 | Portable player and system and method for writing a playlist | James D. Hempleman, Sandra M. Hempleman | 2010-10-12 |
| 7805402 | List building system | James D. Hempleman, Sandra M. Hempleman | 2010-09-28 |
| 7680829 | List building system | James D. Hempleman, Sandra M. Hempleman | 2010-03-16 |
| 6763345 | List building system | James D. Hempleman, Sandra M. Hempleman | 2004-07-13 |
| 6243725 | List building system | James D. Hempleman, Sandra M. Hempleman | 2001-06-05 |