Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6478953 | Oil filter and dehydrator | Michael R. Spearman, David Kolstad, Craig J. Cuta, Mathews Thundyil, Majid Zia | 2002-11-12 |
| 6123076 | Hydrophobic barrier for filters and filter media | Keith A. Roberts, Michael R. Spearman, Majid Zia, Rochelle Marie Mickschl | 2000-09-26 |
| 5549741 | Ink varnish composition | Thomas J. Pennaz | 1996-08-27 |
| 5431721 | Ink varnish and composition and method of making the same | Thomas J. Pennaz | 1995-07-11 |