Patent Explorer
Browse, filter, and analyze 2 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US3989639A | Nematic liquid crystal compositions | Dai Nippon Toryo Co Ltd | Expired / Lapsed | 1974-08-30 | 1976-11-02 | 1994-08-30 | 0.0 yrs | 11 | |
| US3772206A | Radiothermoluminescence dosimeters and materials therefor | Dai Nippon Toryo Co Ltd | Expired / Lapsed | 1971-12-30 | 1973-11-13 | 1991-12-30 | 0.0 yrs | 0 |