Ethyl Corp
Ethyl CorpActive Patents
0
Total Holdings
7
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US4423205A | Cationic polymerization of cyclic carbonates | Expired / Lapsed | 1982-05-24 | 1983-12-27 | 19 | Details |
| US3918443A | Method for birth control | Expired / Lapsed | 1973-08-27 | 1975-11-11 | 7 | Details |
| US3779241A | Intrauterine contraceptive device and method for its use | Expired / Lapsed | 1971-10-20 | 1973-12-18 | 15 | Details |
| US3459780A | Organometallic compounds formed by reactions of rhodium mon… | Expired / Lapsed | 1967-02-15 | 1969-08-05 | 0 | Details |
| US3282243A | Movable means comprising vapor-plating nozzle and exhaust | Expired / Lapsed | 1965-09-08 | 1966-11-01 | 2 | Details |
| US3171395A | Internal combustion engine and method of operating same | Expired / Lapsed | 1962-02-08 | 1965-03-02 | 2 | Details |
| US2922738A | Fungicidal compositions | Expired / Lapsed | 1955-05-27 | 1960-01-26 | 2 | Details |