Patent Explorer
Browse, filter, and analyze 2 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US4650506A | Multi-layered microfiltration medium | Donaldson Co Inc | Expired / Lapsed | 1986-02-25 | 1987-03-17 | 2006-02-25 | 0.0 yrs | 24 | |
| US2684069A | Precision linear-fracture instrument for heart valve surgery | Donaldson Co Inc | Expired / Lapsed | 1952-07-05 | 1954-07-20 | 1972-07-05 | 0.0 yrs | 0 |