Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12157084 | Pleated media for a conical shaped filter element | Majid Zia, Michael R. Spearman, Allan J. Alden | 2024-12-03 |
| 8529667 | Method for the selective extraction of acids, bases and polar salts | Matt Thundyil, Carl Hahn, Doug Mittlesteadt, Heath Burns | 2013-09-10 |
| 8425663 | Method for the selective extraction of acids, bases and polar salts | Matt Thundyil, Michael R. Spearman, Doug Mittlesteadt, Heath Burns, Carl Hahn | 2013-04-23 |
| 7604685 | Method for the selective extraction of acids | Matt Thundyil, Michael R. Spearman, Doug Mittlesteadt, Heath Burns, Carl Hahn | 2009-10-20 |
| 7413657 | Method for selective extraction | Mathews Thundyil, Heath Burns, Douglas M. Mittlesteadt, Michael R. Spearman | 2008-08-19 |