Gulf Research and Development Co
Gulf ReseaActive Patents
0
Total Holdings
95
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US4153785A | Polyamide resins from dilactones | Expired / Lapsed | 1978-04-19 | 1979-05-08 | 13 | Details |
| US4104281A | Process for preparing novel isomeric dicarboxy, di (hydroxy… | Expired / Lapsed | 1976-12-08 | 1978-08-01 | 13 | Details |
| US3844892A | Method of immobilizing enzymes | Expired / Lapsed | 1972-12-19 | 1974-10-29 | 7 | Details |
| US3841970A | Immobilized enzymes | Expired / Lapsed | 1972-12-19 | 1974-10-15 | 2 | Details |
| US3745830A | Remote surface temperature determination | Expired / Lapsed | 1971-07-13 | 1973-07-17 | 13 | Details |
| US3706703A | Process for the preparation of cyclic acid anhydrides | Expired / Lapsed | 1970-11-27 | 1972-12-19 | 0 | Details |
| US3686224A | 2,6,7-trioxabicyclo(2.2.2)octane compounds | Expired / Lapsed | 1970-02-24 | 1972-08-22 | 0 | Details |
| US3644571A | Process of heating caprolactam graft copolymers to increase… | Expired / Lapsed | 1970-03-19 | 1972-02-22 | 0 | Details |
| US3598283A | Gasoline pump computer | Expired / Lapsed | 1969-04-14 | 1971-08-10 | 16 | Details |
| US3458416A | Photolytic condensation of saturated hydrocarbons with poly… | Expired / Lapsed | 1966-04-26 | 1969-07-29 | 0 | Details |
| US3453246A | Thermosettable composition composed of a polyanhydride and … | Expired / Lapsed | 1966-03-14 | 1969-07-01 | 0 | Details |
| US3419220A | Nozzles for abrasive-laden slurry | Expired / Lapsed | 1966-11-30 | 1968-12-31 | 0 | Details |
| US3374209A | Thermosettable compositions containing polyanhydride and mo… | Expired / Lapsed | 1964-12-22 | 1968-03-19 | 2 | Details |
| US3287695A | Self-adjusting inverse filter | Expired / Lapsed | 1964-06-22 | 1966-11-22 | 2 | Details |
| US3225520A | Sample preparation and collection means for gas chromatogra… | Expired / Lapsed | 1962-06-04 | 1965-12-28 | 2 | Details |
| US3132094A | Ultrafiltration of electrolyte solutions through ion-exchan… | Expired / Lapsed | 1958-09-11 | 1964-05-05 | 2 | Details |
| US3035969A | Carbamate-pyrethrin insecticides | Expired / Lapsed | 1958-05-01 | 1962-05-22 | 2 | Details |
| US3009578A | Pre-stressed reinforced ion-exchange membrane and method of… | Expired / Lapsed | 1958-04-15 | 1961-11-21 | 0 | Details |
| US2994776A | Stabilized borehole logging | Expired / Lapsed | 1956-04-26 | 1961-08-01 | 0 | Details |
| US2968428A | Gravity actuated valves for pressurized dispensers | Expired / Lapsed | 1959-02-26 | 1961-01-17 | 0 | Details |
| US2960378A | Magnitude and integral recorder | Expired / Lapsed | 1958-12-19 | 1960-11-15 | 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 |
| US2841167A | Ball type shut-off valve | Expired / Lapsed | 1953-07-27 | 1958-07-01 | 0 | Details |
| US2839152A | Chromatography method and apparatus | Expired / Lapsed | 1956-10-23 | 1958-06-17 | 2 | Details |
| US2831539A | Automatic dual-zone storm choke | Expired / Lapsed | 1954-05-26 | 1958-04-22 | 0 | Details |
| US2829175A | Purification of bis-phenols | Expired / Lapsed | 1953-10-14 | 1958-04-01 | 2 | 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 |
| US2769918A | Epithermal neutron logging method using collimation | Expired / Lapsed | 1952-10-02 | 1956-11-06 | 0 | Details |
| US2769916A | Coincidence-type slow neutron detector | Expired / Lapsed | 1952-10-02 | 1956-11-06 | 0 | Details |
| US2737646A | Transient viewer and recorder | Expired / Lapsed | 1952-06-12 | 1956-03-06 | 0 | Details |
| US2720624A | Apparatus for detecting changes in composition of a liquid … | Expired / Lapsed | 1951-09-07 | 1955-10-11 | 2 | Details |
| US2718503A | Anticorrosion agents consisting of the monamides of dimeriz… | Expired / Lapsed | 1953-02-20 | 1955-09-20 | 2 | Details |
| US2696410A | Journal bearing | Expired / Lapsed | 1949-06-08 | 1954-12-07 | 0 | Details |
| US2688368A | System for the removal of corrosive fluids from gas wells | Expired / Lapsed | 1950-04-28 | 1954-09-07 | 2 | Details |
| US2657374A | Suspension system for seismograph detectors | Expired / Lapsed | 1949-11-02 | 1953-10-27 | 0 | Details |
| US2614976A | Electrode for determining cationic activity | Expired / Lapsed | 1951-10-19 | 1952-10-21 | 4 | 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 |
| US2579663A | Process of synthesizing hydrocarbons | Expired / Lapsed | 1948-12-15 | 1951-12-25 | 1 | 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 |
| US2568026A | Relief and control valve | Expired / Lapsed | 1945-03-28 | 1951-09-18 | 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 |
| US2542775A | Spraying head | Expired / Lapsed | 1946-05-21 | 1951-02-20 | 0 | Details |
| US2509321A | Rotary fluid unit for take-off under variable control | Expired / Lapsed | 1946-07-19 | 1950-05-30 | 0 | Details |
| US2499626A | Dipole moment indicator and control method | Expired / Lapsed | 1947-04-30 | 1950-03-07 | 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 |
| US2467959A | Manufacture of refined paraffin wax | Expired / Lapsed | 1947-02-21 | 1949-04-19 | 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 |
| US2455285A | Strain gauge | Expired / Lapsed | 1945-09-13 | 1948-11-30 | 0 | Details |
| US2455243A | Apparatus for automatic control of heat input to stillpots | Expired / Lapsed | 1945-07-02 | 1948-11-30 | 0 | Details |
| US2440971A | Seismograph recording apparatus | Expired / Lapsed | 1945-06-14 | 1948-05-04 | 0 | Details |
| US2435843A | Method of examining earth substances by means of ultraviole… | Expired / Lapsed | 1947-03-18 | 1948-02-10 | 0 | Details |
| US2416504A | Prevention of foaming of hydrocarbon oils | Expired / Lapsed | 1945-01-03 | 1947-02-25 | 0 | Details |
| US2415411A | Method of and apparatus for high vacuum distillation | Expired / Lapsed | 1942-03-30 | 1947-02-11 | 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 |
| US2318795A | Seismograph amplifier system | Expired / Lapsed | 1936-02-18 | 1943-05-11 | 0 | Details |
| US2303853A | Cutting oil | Expired / Lapsed | 1940-12-20 | 1942-12-01 | 0 | Details |
| US2286106A | Apparatus for and method of receiving and recording vibrati… | Expired / Lapsed | 1939-02-09 | 1942-06-09 | 0 | Details |
| US2281960A | Apparatus for logging bores | Expired / Lapsed | 1939-07-26 | 1942-05-05 | 0 | Details |
| US2281949A | Apparatus for seismograph prospecting | Expired / Lapsed | 1938-12-14 | 1942-05-05 | 0 | Details |
| US2272984A | Seismograph | Expired / Lapsed | 1939-07-21 | 1942-02-10 | 0 | Details |
| US2267356A | Apparatus for and method of seismograph recording | Expired / Lapsed | 1940-01-16 | 1941-12-23 | 0 | Details |
| US2253472A | Apparatus for submarine geophysical prospecting | Expired / Lapsed | 1939-07-17 | 1941-08-19 | 0 | Details |
| US2252727A | Telemetric level | Expired / Lapsed | 1938-08-24 | 1941-08-19 | 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 |
| US2232476A | Method of and apparatus for measuring depths in wells | Expired / Lapsed | 1939-11-27 | 1941-02-18 | 0 | Details |
| US2227559A | Manufacture of high octane gasoline | Expired / Lapsed | 1940-02-26 | 1941-01-07 | 0 | Details |
| US2218155A | Formation tester | Expired / Lapsed | 1940-01-17 | 1940-10-15 | 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 |
| US2104488A | Treatment of wells | Expired / Lapsed | 1935-10-03 | 1938-01-04 | 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 |
| US2050800A | Meter testing | Expired / Lapsed | 1934-11-05 | 1936-08-11 | 0 | Details |
| US2045474A | Dynamometer | Expired / Lapsed | 1934-08-09 | 1936-06-23 | 0 | Details |
| US2034347A | Method of treating wells | Expired / Lapsed | 1935-01-29 | 1936-03-17 | 0 | Details |
| US2013252A | Fluid pressure test gauge | Expired / Lapsed | 1932-08-22 | 1935-09-03 | 0 | Details |
| US1999147A | Drilling well and well drilling fluid | Expired / Lapsed | 1934-06-25 | 1935-04-23 | 0 | Details |