Patent Explorer
Browse, filter, and analyze 13 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US2337522A | Detonation measurement | Standard Oil Company of California | Expired / Lapsed | 1943-05-04 | 1943-12-21 | 1963-05-04 | 0.0 yrs | 0 | |
| US2287829A | Liquid metering device | Standard Oil Company of California | Expired / Lapsed | 1940-05-03 | 1942-06-30 | 1960-05-03 | 0.0 yrs | 0 | |
| US2287825A | Apparatus for cooling coated pipe | Standard Oil Company of California | Expired / Lapsed | 1938-07-30 | 1942-06-30 | 1958-07-30 | 0.0 yrs | 0 | |
| US2287830A | Method of coating pipe | Standard Oil Company of California | Expired / Lapsed | 1940-05-10 | 1942-06-30 | 1960-05-10 | 0.0 yrs | 0 | |
| US2284147A | Method and apparatus for soil gas analysis | Standard Oil Company of California | Expired / Lapsed | 1939-01-28 | 1942-05-26 | 1959-01-28 | 0.0 yrs | 0 | |
| US2283510A | Method of drilling wells | Standard Oil Company of California | Expired / Lapsed | 1941-06-02 | 1942-05-19 | 1961-06-02 | 0.0 yrs | 0 | |
| US2263859A | Spark advance indicator | Standard Oil Company of California | Expired / Lapsed | 1940-03-23 | 1941-11-25 | 1960-03-23 | 0.0 yrs | 0 | |
| US2215913A | Method and apparatus for operating wells | Standard Oil Company of California | Expired / Lapsed | 1938-10-04 | 1940-09-24 | 1958-10-04 | 0.0 yrs | 0 | |
| US2118428A | Well tubing port control | Standard Oil Company of California | Expired / Lapsed | 1937-12-15 | 1938-05-24 | 1957-12-15 | 0.0 yrs | 0 | |
| US2089216A | Apparatus for orienting cores | Standard Oil Company of California | Expired / Lapsed | 1936-03-03 | 1937-08-10 | 1956-03-03 | 0.0 yrs | 0 | |
| US2015851A | Pressure and temperature recorder | Standard Oil Company of California | Expired / Lapsed | 1933-03-06 | 1935-10-01 | 1953-03-06 | 0.0 yrs | 0 | |
| US1895643A | Method of and apparatus for measuring the thickness of metal | Standard Oil Company of California | Expired / Lapsed | 1929-03-05 | 1933-01-31 | 1949-03-05 | 0.0 yrs | 0 | |
| US1870809A | System for lubricating machinery | Standard Oil Company of California | Expired / Lapsed | 1929-01-09 | 1932-08-09 | 1949-01-09 | 0.0 yrs | 0 |