Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7582209 | Graded particle-size retention filter medium for fluid filtration unit with improved edge seal | John L. Pulek, William Larsen, C. Paul, Clifford L. Schorr, Francis J. Swiatek | 2009-09-01 |
| 7178676 | Graded particle-size retention filter medium for fluid filtration unit with improved edge seal | John L. Pulek, William Larsen, C. Paul, Clifford L. Schorr, Francis J. Swiatek | 2007-02-20 |
| 6939466 | Graded particle-size retention filter medium for fluid filtration unit with improved edge seal | John L. Pulek, William Larsen, C. Paul, Clifford L. Schorr, Francis J. Swiatek | 2005-09-06 |
| 6712966 | Graded particle-size retention filter medium for cell-type filter unit | John L. Pulek, William Larsen, Charles Thomas Paul, Clifford L. Schorr, Francis J. Swiatek | 2004-03-30 |