Patent Explorer
Browse, filter, and analyze 3 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US4555399A | Aspirin tablet | Key Pharmaceuticals Inc | Expired / Lapsed | 1984-03-08 | 1985-11-26 | 2004-03-08 | 0.0 yrs | 8 | |
| US4484577A | Drug delivery method and inhalation device therefor | Key Pharmaceuticals Inc | Expired / Lapsed | 1982-05-12 | 1984-11-27 | 2002-05-12 | 0.0 yrs | 26 | |
| US4438139A | Polymeric diffusion matrix containing estrogens | Key Pharmaceuticals Inc | Expired / Lapsed | 1982-01-04 | 1984-03-20 | 2002-01-04 | 0.0 yrs | 14 |