Patent Explorer
Browse, filter, and analyze 10 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US3129717A | System for automatically adding a lime slurry to water | NL Industries Inc | Expired / Lapsed | 1960-05-23 | 1964-04-21 | 1980-05-23 | 0.0 yrs | 0 | |
| US2792287A | Synthetic rutile crystal and method for making same | NL Industries Inc | Expired / Lapsed | 1956-04-04 | 1957-05-14 | 1976-04-04 | 0.0 yrs | 2 | |
| US2697051A | Treatment of titanium metal surfaces | NL Industries Inc | Expired / Lapsed | 1952-09-17 | 1954-12-14 | 1972-09-17 | 0.0 yrs | 2 | |
| US2678887A | Hydration resistant calcium oxide refractories | NL Industries Inc | Expired / Lapsed | 1951-12-10 | 1954-05-18 | 1971-12-10 | 0.0 yrs | 2 | |
| US2667673A | Apparatus for casting metallic rod | NL Industries Inc | Expired / Lapsed | 1951-03-19 | 1954-02-02 | 1971-03-19 | 0.0 yrs | 0 | |
| US2607982A | Metallic composition | NL Industries Inc | Expired / Lapsed | 1948-06-23 | 1952-08-26 | 1968-06-23 | 0.0 yrs | 2 | |
| US2571247A | Electrodialytic treatment of well-drilling fluids | NL Industries Inc | Expired / Lapsed | 1943-09-06 | 1951-10-16 | 1963-09-06 | 0.0 yrs | 0 | |
| US2344319A | Method for the purification of titanium tetrachloride | NL Industries Inc | Expired / Lapsed | 1942-09-11 | 1944-03-14 | 1962-09-11 | 0.0 yrs | 0 | |
| US2320498A | Process of making metal coated collapsible tubes | NL Industries Inc | Expired / Lapsed | 1940-04-09 | 1943-06-01 | 1960-04-09 | 0.0 yrs | 0 | |
| US2242441A | Method of making bearings | NL Industries Inc | Expired / Lapsed | 1938-08-15 | 1941-05-20 | 1958-08-15 | 0.0 yrs | 0 |