Assignee
AGIP SPA
IT·30 granted patents·405 citations·filing 1982–1998
Top patents by PatentIndex Score
30 records- 0173US4607121AProcess for preparing alkaline metal salts of polyethoxycarboxylic acidsAGIP SPA·Filed 1984·Granted Aug 19, 1986·12 cites·8 claims
- 0268US5191370AMulti-section helicopter-borne rotatable beam, specially adapted to support range-finder cameras and television focusing cameras for stereophotogrammetric surveysAGIP SPA·Filed 1991·Granted Mar 2, 1993·37 cites·4 claims
- 0362US5690176AComposition effective in removing asphaltenesAGIP SPA·Filed 1996·Granted Nov 25, 1997·22 cites·8 claims
- 0461US4652497AOrganosiloxane compositions for abrasion resistant and adhesion promoting protective coatingsAGIP SPA·Filed 1984·Granted Mar 24, 1987·17 cites·35 claims
- 0559US5390529AMethod for determining heavy hydrocarbons in rock matrices and the apparatus for the purposeAGIP SPA·Filed 1994·Granted Feb 21, 1995·33 cites·15 claims
- 0657US5511038AProcess and device for detecting seismic signals in order to obtain vertical seismic profiles during bore drilling operationsAGIP SPA·Filed 1994·Granted Apr 23, 1996·34 cites·3 claims
- 0756US5844136ADevice for measuring the permeability of rock fragmentsAGIP SPA·Filed 1997·Granted Dec 1, 1998·25 cites·8 claims
- 0852US4669843ARotatable heliborne beam for supporting metric photo-cameras suitable to industrial stereophotogrammetric surveysAGIP SPA·Filed 1985·Granted Jun 2, 1987·23 cites·4 claims
- 0951US5382728AEffective hydrocarbon blend for removing asphaltenesAGIP SPA·Filed 1993·Granted Jan 17, 1995·14 cites·6 claims
- 1048US5438039AEffective hydrocarbon blend for removing asphaltenes from oil wellsAGIP SPA·Filed 1994·Granted Aug 1, 1995·12 cites·7 claims
- 1148US4641960AMethod for the stereophotogrammetric survey of large-dimension objects on sea and landAGIP SPA·Filed 1984·Granted Feb 10, 1987·10 cites·8 claims
- 1247US5494320AQuick joint for rapid, tight-seal connection of pipes, particularly suitable for petroleum pipesAGIP SPA·Filed 1994·Granted Feb 27, 1996·15 cites·15 claims
- 1345US5678608AAnti-seizure protection for joints, particularly suitable for the petroleum sectorAGIP SPA·Filed 1995·Granted Oct 21, 1997·15 cites·2 claims
- 1444US5168477AMethod of and an apparatus for the ultrasonic identification of materials and equipmentsAGIP SPA·Filed 1991·Granted Dec 1, 1992·17 cites·18 claims
- 1542US5691475AMethod for measuring the propagation velocity of ultrasonic acoustic waves through rock fragmentsAGIP SPA·Filed 1995·Granted Nov 25, 1997·13 cites·7 claims
- 1637US4859117AReversible mechanical coupling, particularly for tensional anchoragesAGIP SPA·Filed 1989·Granted Aug 22, 1989·8 cites·4 claims
- 1736US6010163AThreaded joint for connecting two pipes with a metal to metal sealAGIP SPA·Filed 1997·Granted Jan 4, 2000·18 cites·4 claims
- 1836US5646092APretreated clays, their preparation and use in formulation drilling muds not aggressive to layer claysAGIP SPA·Filed 1993·Granted Jul 8, 1997·5 cites·14 claims
- 1936US4664558AReversible mechanical coupling for tensional anchoragesAGIP SPA·Filed 1985·Granted May 12, 1987·8 cites·10 claims
- 2032US5637806AProcedure for evaluating the friction characteristics of a shouldered threaded connectionAGIP SPA·Filed 1995·Granted Jun 10, 1997·14 cites·1 claims
- 2132US5571452AProcess for recovering and moving highly viscous petroleum productsAGIP SPA·Filed 1994·Granted Nov 5, 1996·2 cites·17 claims
- 2232US4644661ASignal for industrial surveysAGIP SPA·Filed 1986·Granted Feb 24, 1987·5 cites·11 claims
- 2326US5895437AMethod for continuous updating in real time of bidimensional and tridimensional seismic images of a subsurface section using drilling well dataAGIP SPA·Filed 1996·Granted Apr 20, 1999·12 cites·3 claims
- 2426US5186441AInternal centering device particularly suitable for connecting the ends of tubesAGIP SPA·Filed 1991·Granted Feb 16, 1993·8 cites·4 claims
- 2525US5934303AProcess for moving heavy crude oils with water having a high content of saltsAGIP SPA·Filed 1998·Granted Aug 10, 1999·1 cites·16 claims
- 2625US5351525AProcess for generating, by way of experimental tests, the capillary pressure curve in a porous mediumAGIP SPA·Filed 1993·Granted Oct 4, 1994·8 cites·7 claims
- 2723US4967842ASub surface safety valve block, particularly suitable for the risers of offshore platformsAGIP SPA·Filed 1989·Granted Nov 6, 1990·9 cites·4 claims
- 2821US5937949AProcess for the consolidation of sandAGIP SPA·Filed 1997·Granted Aug 17, 1999·2 cites·11 claims
- 2918US4443395AMethod for preparing thin sections for the microscopic study of small fragments of rock or dust, using a plate containing cellsAGIP SPA·Filed 1982·Granted Apr 17, 1984·4 cites·2 claims
- 3015US4645636AMeasuring head for determining the pressure of fission gases released inside bars of nuclear fuelAGIP SPA·Filed 1984·Granted Feb 24, 1987·2 cites·1 claims
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