Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7182905 | Blow molded article with retaining feature and method of creating same | Michael Grinnall, Duane Franzen | 2007-02-27 |
| 6988633 | Blow molded article with retaining feature and method of creating same | Michael Grinnall, Duane Franzen | 2006-01-24 |