Lane Wells Co
Lane WellsActive Patents
0
Total Holdings
27
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2879360A | Photoconductive device having a silicon dioxide protective … | Expired / Lapsed | 1956-10-01 | 1959-03-24 | 2 | Details |
| US2754475A | Borehole diameter and lateral depth of fluid invasion indic… | Expired / Lapsed | 1949-01-28 | 1956-07-10 | 2 | Details |
| US2701334A | Electrical logging of well bores | Expired / Lapsed | 1953-06-16 | 1955-02-01 | 0 | Details |
| US2620029A | Electrical connector for well tools | Expired / Lapsed | 1948-12-21 | 1952-12-02 | 0 | Details |
| US2472056A | Flowmeter | Expired / Lapsed | 1944-12-11 | 1949-05-31 | 0 | Details |
| US2447546A | Automatic shutoff apparatus for oil wells | Expired / Lapsed | 1942-03-30 | 1948-08-24 | 0 | Details |
| US2446527A | Phase shift logging of well bores | Expired / Lapsed | 1942-03-28 | 1948-08-10 | 0 | Details |
| US2444394A | Method of molding diaphragms | Expired / Lapsed | 1943-03-11 | 1948-06-29 | 0 | Details |
| US2427377A | Contact means for electrically operated well tools | Expired / Lapsed | 1942-05-30 | 1947-09-16 | 0 | Details |
| US2393009A | Electrical well logging method and apparatus | Expired / Lapsed | 1942-11-03 | 1946-01-15 | 0 | Details |
| US2370476A | Dual production device | Expired / Lapsed | 1941-08-11 | 1945-02-27 | 0 | Details |
| US2358441A | Inductive-capacitive electrical logging | Expired / Lapsed | 1941-07-12 | 1944-09-19 | 0 | Details |
| US2338991A | Magnetic well logging | Expired / Lapsed | 1940-10-19 | 1944-01-11 | 0 | Details |
| US2307983A | Selective production means for wells | Expired / Lapsed | 1940-01-22 | 1943-01-12 | 0 | Details |
| US2297006A | Gun perforator firing system | Expired / Lapsed | 1941-03-07 | 1942-09-29 | 0 | Details |
| US2288876A | Magnetic logging | Expired / Lapsed | 1941-01-21 | 1942-07-07 | 0 | Details |
| US2279676A | Hydrostatically operated setting tool | Expired / Lapsed | 1941-01-10 | 1942-04-14 | 0 | Details |
| US2266382A | Setting tool for bridging plugs | Expired / Lapsed | 1939-12-11 | 1941-12-16 | 0 | Details |
| US2265978A | Alternating current electrologging of well bores | Expired / Lapsed | 1939-10-04 | 1941-12-16 | 0 | Details |
| US2255754A | Multiple record electrologging of wells | Expired / Lapsed | 1939-03-08 | 1941-09-16 | 0 | Details |
| US2210205A | Water intrusion location in oil wells | Expired / Lapsed | 1939-03-30 | 1940-08-06 | 0 | Details |
| US2191765A | Temperature indicator for wells | Expired / Lapsed | 1938-07-02 | 1940-02-27 | 0 | Details |
| US2167194A | Apparatus for deflecting drill holes | Expired / Lapsed | 1936-03-14 | 1939-07-25 | 0 | Details |
| US2167066A | Locating water strata in oil wells | Expired / Lapsed | 1935-03-20 | 1939-07-25 | 0 | Details |
| US2142555A | Automatic compensator for geophysical devices | Expired / Lapsed | 1936-01-13 | 1939-01-03 | 0 | Details |
| US2139105A | Pressure indication within well bores | Expired / Lapsed | 1936-06-04 | 1938-12-06 | 0 | Details |
| US2133776A | Subsurface prospecting device | Expired / Lapsed | 1936-02-18 | 1938-10-18 | 0 | Details |