Patent Explorer
Browse, filter, and analyze 2 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US3687129A | Contraceptive device and method of employing same | Kovalus Separation Solutions LLC | Expired / Lapsed | 1970-10-02 | 1972-08-29 | 1990-10-02 | 0.0 yrs | 41 | |
| US3536611A | Membrane device and method | Kovalus Separation Solutions LLC | Expired / Lapsed | 1967-02-06 | 1970-10-27 | 1987-02-06 | 0.0 yrs | 0 |