Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5543047 | Filter with over-laid pleats in intimate contact | Richard C. Stoyell, Kenneth M. Williamson, Scott D. Hopkins, Terry L. Wolff | 1996-08-06 |
| 5523183 | Apparatus for use in a battery | Paul C. Koehler, Ralph B. Di Palma | 1996-06-04 |
| 5510026 | Filtering arrangement including a non-reentrant shape | Scott D. Hopkins, William Lewis Murphy, II, John D. Miller | 1996-04-23 |
| 5474585 | Filtering apparatus | Ulrich Otto, Glen E. Petaja, Eric Simonson | 1995-12-12 |
| 5437788 | Backwashing filter assembly | Ashok K. Bhanot | 1995-08-01 |
| 5401406 | Filter assembly having a filter element and a sealing device | Mark Johnson, Tanweer Haq | 1995-03-28 |
| 5378426 | Oxidation resistant metal particulates and media and methods of forming the same with low carbon content | John L. Hurley, Sandra Brosious | 1995-01-03 |
| 5318606 | Filtration system | Mark F. Hurwitz | 1994-06-07 |
| 5290446 | Helical wrapped filter element | Peter J. Degen, Colin F. Harwood, Clemens C. von Reitzenstein, Raymond T. Friel | 1994-03-01 |
| 5149360 | Liquid laydown process and metal filter | Paul C. Koehler, Michael B. Whitlock | 1992-09-22 |
| 5143616 | Composite structure and method of making | David B. Pall | 1992-09-01 |