Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7848951 | Method and apparatus for providing specifically targeted advertising and preventing various forms of advertising fraud in electronic books | William Lidwell | 2010-12-07 |
| 7543594 | Shelter vacuum hold down device | — | 2009-06-09 |