Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4218324 | Filter element having removable filter media member | Wilhelm U. Hartmann, Daniel J. Ryan | 1980-08-19 | $6,531,000 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4218324 | Filter element having removable filter media member | Wilhelm U. Hartmann, Daniel J. Ryan | 1980-08-19 | $6,531,000 |