Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8187474 | Water-filtering media and filters | Mark Freeman, Clarence S. Freeman | 2012-05-29 |
| 7425266 | Water-filtering media and filters | Mark Freeman, Clarence S. Freeman | 2008-09-16 |
| 6399730 | Water absorbing polymer | Clarence S. Freeman, Matthew Freeman | 2002-06-04 |
| 6291605 | Polymerization process with spraying step | Clarence S. Freeman, Matthew Freeman | 2001-09-18 |