Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6730217 | Magnetic particle separator and method | William R. Schaaf | 2004-05-04 |
| 6355176 | Magnetic apparatus for collecting, conveying and releasing magnetic materials and method | William R. Schaaf, Donald L. Smith | 2002-03-12 |
| 6056879 | Movable magnetic assembly for collecting and releasing magnetic materials and method | William R. Schaaf, Donald L. Smith | 2000-05-02 |
| 5819949 | Apparatus for separating magnetic material and method | William R. Schaaf | 1998-10-13 |