NL Industries Inc
NL IndustrActive Patents
0
Total Holdings
30
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US4532812A | Parametric acoustic flow meter | Expired / Lapsed | 1983-06-30 | 1985-08-06 | 33 | Details |
| US3172772A | Method for improving the gloss properties of titanium dioxi… | Expired / Lapsed | 1960-12-30 | 1965-03-09 | 2 | Details |
| US3129717A | System for automatically adding a lime slurry to water | Expired / Lapsed | 1960-05-23 | 1964-04-21 | 0 | Details |
| US2966506A | Modified clay complexes and method of preparation | Expired / Lapsed | 1958-10-28 | 1960-12-27 | 2 | Details |
| US2926183A | Organotitanium complexes and method of making same | Expired / Lapsed | 1957-05-24 | 1960-02-23 | 4 | Details |
| US2913469A | Organotitanium compounds and process of preparation | Expired / Lapsed | 1956-08-07 | 1959-11-17 | 4 | Details |
| US2898356A | Organotitanium compounds and process of preparation | Expired / Lapsed | 1955-09-06 | 1959-08-04 | 2 | Details |
| US2886579A | Organotitanium compounds and method for preparing the same | Expired / Lapsed | 1957-12-05 | 1959-05-12 | 4 | Details |
| US2850033A | Automatic air vent valve | Expired / Lapsed | 1953-05-05 | 1958-09-02 | 0 | Details |
| US2818347A | Method for making composite titanium dioxide rutile pigment | Expired / Lapsed | 1953-09-25 | 1957-12-31 | 1 | Details |
| US2792287A | Synthetic rutile crystal and method for making same | Expired / Lapsed | 1956-04-04 | 1957-05-14 | 2 | Details |
| US2697051A | Treatment of titanium metal surfaces | Expired / Lapsed | 1952-09-17 | 1954-12-14 | 2 | Details |
| US2678887A | Hydration resistant calcium oxide refractories | Expired / Lapsed | 1951-12-10 | 1954-05-18 | 2 | Details |
| US2667673A | Apparatus for casting metallic rod | Expired / Lapsed | 1951-03-19 | 1954-02-02 | 0 | Details |
| US2641558A | Water repellence fixative treatment | Expired / Lapsed | 1948-12-24 | 1953-06-09 | 2 | Details |
| US2623253A | Rod casting device | Expired / Lapsed | 1948-10-27 | 1952-12-30 | 0 | Details |
| US2607982A | Metallic composition | Expired / Lapsed | 1948-06-23 | 1952-08-26 | 2 | Details |
| US2602028A | Austenitic steels | Expired / Lapsed | 1950-12-18 | 1952-07-01 | 2 | Details |
| US2571247A | Electrodialytic treatment of well-drilling fluids | Expired / Lapsed | 1943-09-06 | 1951-10-16 | 0 | Details |
| US2531440A | Lubricants | Expired / Lapsed | 1947-03-29 | 1950-11-28 | 2 | Details |
| US2531396A | Elastomer reinforced with a modified clay | Expired / Lapsed | 1947-03-29 | 1950-11-28 | 2 | Details |
| US2498514A | Zirconium compound deodorant and antiperspirant | Expired / Lapsed | 1946-01-18 | 1950-02-21 | 2 | Details |
| US2491410A | Graphite-free titanium carbide and method of making same | Expired / Lapsed | 1945-07-23 | 1949-12-13 | 0 | Details |
| US2344319A | Method for the purification of titanium tetrachloride | Expired / Lapsed | 1942-09-11 | 1944-03-14 | 0 | Details |
| US2320498A | Process of making metal coated collapsible tubes | Expired / Lapsed | 1940-04-09 | 1943-06-01 | 0 | Details |
| US2304232A | Method and means for controlling drilling muds | Expired / Lapsed | 1936-06-06 | 1942-12-08 | 0 | Details |
| US2242441A | Method of making bearings | Expired / Lapsed | 1938-08-15 | 1941-05-20 | 0 | Details |
| US2218533A | Method and apparatus for filtering and dehydrating drilling… | Expired / Lapsed | 1939-02-06 | 1940-10-22 | 0 | Details |
| US2167627A | Method of beneficiating titaniumbearing siliceous minerals | Expired / Lapsed | 1937-10-06 | 1939-08-01 | 0 | Details |
| US1602136A | Flow meter | Expired / Lapsed | 1920-11-08 | 1926-10-05 | 0 | Details |