Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7537630 | Folding filter frame and filter | Daniel E. Schuld, Donald N. Jursich, Edward M. Hopman | 2009-05-26 |
| 6638333 | Method and apparatus for assembling an expandable media filter with spacing ribbons | Daniel E. Schuld, Rajendra K. Shah, Dwight H. Heberer, Danny L. Jenkins, Robert G. Fisher | 2003-10-28 |
| 6599343 | Method and apparatus for assembling an expandable and disposable media filter | Michael Fredrick, Daniel E. Schuld, Rajendra K. Shah, Dwight H. Heberer, Danny L. Jenkins | 2003-07-29 |