Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5215376 | Method for causing vortices in a test tube | Harvey Schulte | 1993-06-01 |
| 5005981 | Apparatus for method for causing vortices in a test tube | Harvey Schulte | 1991-04-09 |
| 4559575 | Removable disk cartridge with improved door operating mechanism | Robert P. Wartenbergh | 1985-12-17 |