Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6558444 | Fluid filters having a concealed machine-readable identification | — | 2003-05-06 |
| 4196027 | Method of making filter elements for gas or liquid | Brian Walker, George S. Hunter | 1980-04-01 |