Gulf Research and Development Co
Gulf ReseaActive Patents
0
Total Holdings
43
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3686224A | 2,6,7-trioxabicyclo(2.2.2)octane compounds | Expired / Lapsed | 1970-02-24 | 1972-08-22 | 0 | Details |
| US3132094A | Ultrafiltration of electrolyte solutions through ion-exchan… | Expired / Lapsed | 1958-09-11 | 1964-05-05 | 2 | Details |
| US3009578A | Pre-stressed reinforced ion-exchange membrane and method of… | Expired / Lapsed | 1958-04-15 | 1961-11-21 | 0 | Details |
| US2938650A | Fluid proportioning system | Expired / Lapsed | 1958-09-18 | 1960-05-31 | 0 | Details |
| US2912994A | Fluid proportioning valve | Expired / Lapsed | 1954-02-05 | 1959-11-17 | 0 | Details |
| US2884624A | Pipeline surveying | Expired / Lapsed | 1956-06-28 | 1959-04-28 | 0 | Details |
| US2851251A | Hammer drill | Expired / Lapsed | 1954-04-27 | 1958-09-09 | 0 | Details |
| US2785755A | Storm choke for oil wells | Expired / Lapsed | 1954-10-19 | 1957-03-19 | 0 | Details |
| US2774108A | Method of making low-resistance ion-exchange membranes | Expired / Lapsed | 1952-09-16 | 1956-12-18 | 2 | Details |
| US2737646A | Transient viewer and recorder | Expired / Lapsed | 1952-06-12 | 1956-03-06 | 0 | Details |
| US2688368A | System for the removal of corrosive fluids from gas wells | Expired / Lapsed | 1950-04-28 | 1954-09-07 | 2 | Details |
| US2608602A | Detecting device | Expired / Lapsed | 1946-08-09 | 1952-08-26 | 0 | Details |
| US2584785A | Process and apparatus for separation of mixtures | Expired / Lapsed | 1948-06-14 | 1952-02-05 | 2 | Details |
| US2581540A | Method of reducing corrosion in wells | Expired / Lapsed | 1948-09-02 | 1952-01-08 | 2 | Details |
| US2580182A | Subsurface flowmeter | Expired / Lapsed | 1947-05-01 | 1951-12-25 | 0 | Details |
| US2575568A | Centrifugal gas-liquid separator | Expired / Lapsed | 1946-11-12 | 1951-11-20 | 0 | Details |
| US2563083A | Hammer drill | Expired / Lapsed | 1948-10-28 | 1951-08-07 | 0 | Details |
| US2555209A | Method and apparatus for measuring the values of magnetic f… | Expired / Lapsed | 1943-11-01 | 1951-05-29 | 0 | Details |
| US2509321A | Rotary fluid unit for take-off under variable control | Expired / Lapsed | 1946-07-19 | 1950-05-30 | 0 | Details |
| US2488449A | Organo-silicon-phosphorus condensation products | Expired / Lapsed | 1946-09-11 | 1949-11-15 | 0 | Details |
| US2480754A | Chromium-containing phenolic amine reaction product | Expired / Lapsed | 1946-10-17 | 1949-08-30 | 0 | Details |
| US2462946A | Automatic system of process control by infrared spectrometry | Expired / Lapsed | 1947-04-11 | 1949-03-01 | 0 | Details |
| US2463297A | Apparatus for testing insulating materials | Expired / Lapsed | 1944-12-21 | 1949-03-01 | 0 | Details |
| US2455942A | Geophysical exploration of boreholes by microwaves | Expired / Lapsed | 1944-12-13 | 1948-12-14 | 0 | Details |
| US2440971A | Seismograph recording apparatus | Expired / Lapsed | 1945-06-14 | 1948-05-04 | 0 | Details |
| US2407202A | Apparatus for responding to magnetic fields | Expired / Lapsed | 1945-07-17 | 1946-09-03 | 0 | Details |
| US2406870A | Apparatus for responding to magnetic fields | Expired / Lapsed | 1941-07-21 | 1946-09-03 | 0 | Details |
| US2364755A | Apparatus for seismograph prospecting | Expired / Lapsed | 1942-01-22 | 1944-12-12 | 0 | Details |
| US2364159A | Apparatus for electrical bore logging | Expired / Lapsed | 1940-10-11 | 1944-12-05 | 0 | Details |
| US2359245A | Electrical displacement vibrometer | Expired / Lapsed | 1943-01-19 | 1944-09-26 | 0 | Details |
| US2354535A | Electrical prospecting | Expired / Lapsed | 1940-10-11 | 1944-07-25 | 0 | Details |
| US2286106A | Apparatus for and method of receiving and recording vibrati… | Expired / Lapsed | 1939-02-09 | 1942-06-09 | 0 | Details |
| US2267356A | Apparatus for and method of seismograph recording | Expired / Lapsed | 1940-01-16 | 1941-12-23 | 0 | Details |
| US2233825A | Pump | Expired / Lapsed | 1939-08-04 | 1941-03-04 | 0 | Details |
| US2233992A | Method of and apparatus for surveying wells | Expired / Lapsed | 1938-01-03 | 1941-03-04 | 0 | Details |
| US2227559A | Manufacture of high octane gasoline | Expired / Lapsed | 1940-02-26 | 1941-01-07 | 0 | Details |
| US2183078A | Strain gauge | Expired / Lapsed | 1936-05-25 | 1939-12-12 | 0 | Details |
| US2153920A | Seismograph prospecting | Expired / Lapsed | 1936-10-17 | 1939-04-11 | 0 | Details |
| US2087702A | Method and means for recording terrestrial waves | Expired / Lapsed | 1934-10-17 | 1937-07-20 | 0 | Details |
| US2080183A | Volumetric meter | Expired / Lapsed | 1935-11-05 | 1937-05-11 | 0 | Details |
| US2055587A | Pump | Expired / Lapsed | 1935-10-11 | 1936-09-29 | 0 | Details |
| US2045474A | Dynamometer | Expired / Lapsed | 1934-08-09 | 1936-06-23 | 0 | Details |
| US2013252A | Fluid pressure test gauge | Expired / Lapsed | 1932-08-22 | 1935-09-03 | 0 | Details |