Union Oil Company of California
Union OilActive Patents
0
Total Holdings
33
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US4358158A | Solution mining process | Expired / Lapsed | 1978-05-05 | 1982-11-09 | 22 | Details |
| US4105253A | Process for recovery of mineral values from underground for… | Expired / Lapsed | 1977-02-11 | 1978-08-08 | 29 | Details |
| US3374341A | Method for controlling pressure differential resulting from… | Expired / Lapsed | 1963-11-26 | 1968-03-19 | 0 | Details |
| US3304612A | Method and apparatus for converting cartograph coordinates … | Expired / Lapsed | 1963-12-23 | 1967-02-21 | 2 | Details |
| US3057192A | Chassis dynamometer | Expired / Lapsed | 1959-09-21 | 1962-10-09 | 0 | Details |
| US2924630A | Fluid diffusion fractionation | Expired / Lapsed | 1957-06-28 | 1960-02-09 | 2 | Details |
| US2791570A | Wax coating composition | Expired / Lapsed | 1953-02-24 | 1957-05-07 | 2 | Details |
| US2791569A | Coating compositions containing a heart-cut paraffin wax an… | Expired / Lapsed | 1953-02-24 | 1957-05-07 | 2 | Details |
| US2759899A | Conversion catalysts and processes for bonding the catalyst… | Expired / Lapsed | 1952-10-03 | 1956-08-21 | 2 | Details |
| US2757738A | Radiation heating | Expired / Lapsed | 1948-09-20 | 1956-08-07 | 2 | Details |
| US2714930A | Apparatus for preventing paraffin deposition | Expired / Lapsed | 1950-12-08 | 1955-08-09 | 2 | Details |
| US2650068A | Coring method and apparatus | Expired / Lapsed | 1949-01-31 | 1953-08-25 | 0 | Details |
| US2648056A | Well logging method and apparatus | Expired / Lapsed | 1948-11-01 | 1953-08-04 | 0 | Details |
| US2637206A | Flowmeter | Expired / Lapsed | 1949-10-13 | 1953-05-05 | 0 | Details |
| US2607221A | Flowmeter | Expired / Lapsed | 1946-05-18 | 1952-08-19 | 0 | Details |
| US2606003A | Off-shore drilling | Expired / Lapsed | 1948-08-28 | 1952-08-05 | 0 | Details |
| US2568379A | Level control | Expired / Lapsed | 1945-11-26 | 1951-09-18 | 0 | Details |
| US2564861A | Method and apparatus for borehole logging | Expired / Lapsed | 1949-10-13 | 1951-08-21 | 0 | Details |
| US2516233A | Alternate oxidation and reduction of carbon | Expired / Lapsed | 1947-02-17 | 1950-07-25 | 2 | Details |
| US2487466A | Catalytic desulfurization of hydrocarbons | Expired / Lapsed | 1945-04-09 | 1949-11-08 | 0 | Details |
| US2425868A | Method and apparatus for logging drill holes | Expired / Lapsed | 1936-08-28 | 1947-08-19 | 0 | Details |
| US2417308A | Desulphurization and hydroforming | Expired / Lapsed | 1943-04-12 | 1947-03-11 | 0 | Details |
| US2364460A | Coating system for protecting surfaces against marine growth | Expired / Lapsed | 1940-09-24 | 1944-12-05 | 0 | Details |
| US2302289A | Electrified spray method and apparatus | Expired / Lapsed | 1938-12-06 | 1942-11-17 | 0 | Details |
| US2279703A | Catalytic conversion of hydrocarbons | Expired / Lapsed | 1938-01-18 | 1942-04-14 | 0 | Details |
| US2231424A | Catalytic method | Expired / Lapsed | 1937-08-09 | 1941-02-11 | 0 | Details |
| US2231231A | Process and apparatus for catalytic operations | Expired / Lapsed | 1937-08-09 | 1941-02-11 | 0 | Details |
| US2225668A | Method and apparatus for logging drill holes | Expired / Lapsed | 1936-08-28 | 1940-12-24 | 0 | Details |
| US2154721A | Automobile polish | Expired / Lapsed | 1935-02-12 | 1939-04-18 | 0 | Details |
| US1928970A | Well survey instrument | Expired / Lapsed | 1930-10-15 | 1933-10-03 | 0 | Details |
| US1928969A | Well survey instrument | Expired / Lapsed | 1930-10-15 | 1933-10-03 | 0 | Details |
| US1910762A | Gas lift apparatus | Expired / Lapsed | 1932-03-08 | 1933-05-23 | 0 | Details |
| US1739724A | Recording dynamometer and method of measuring load variatio… | Expired / Lapsed | 1927-07-18 | 1929-12-17 | 0 | Details |