Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8419858 | Method and system for removing organic compouds in a closed loop system | — | 2013-04-16 |
| 8029763 | Removal of contaminants from by-product acids | — | 2011-10-04 |
| 7704470 | Removal of contaminants from by-product acids | — | 2010-04-27 |
| 6395166 | Method of reclaiming used motor oil for further use | — | 2002-05-28 |
| 5722638 | Valve with means to block relative rotation of parts during assembly | Robert F. Miller | 1998-03-03 |