| Patent Number |
Title Of Patent |
Date Issued |
| 5777609 |
Method of exploiting colors on screen |
July 7, 1998 |
| Process for using colors on a screen with which is associated a color palette especially adapted for the visualization of an image, the content of which is a function of an angles, by altering the transfer function of the palette by circular shift. |
| 5555936 |
Scleroglucan gel applied to the oil industry |
September 17, 1996 |
| The permeability of a subterranean reservoir can be more easily controlled by first injecting a crosslinking agent solution and then subsequently injecting a scleroglucan solution to thereby form, in situ, crosslinked scleroglucan gel. This reverse order of injection allows for a more |
| 5534239 |
Process for the synthesis of a silica enriched crystalline aluminosilicate having the offretite |
July 9, 1996 |
| Process for the synthesis of a silica-enriched crystalline aluminosilicate having the offretite structure from a nucleation gel A containing sources of silicon, aluminium, alkali metal ions, an organic structuring agent and water and a growth gel B containing sources of silicon, aluminiu |
| 5525587 |
Application of muds containing scleroglucan to drilling large diameter wells |
June 11, 1996 |
| The present inventors found that the addition of scleroglucan, in particular of unrefined scleroglucan, to the water employed as drilling fluid for drilling wells requiring a high flow rate made it possible to limit formation leaching and improved the removal of cuttings.The invention ma |
| 5522976 |
Target component for cathode sputtering |
June 4, 1996 |
| The target element (2) is formed from an inorganic compound layer (16) with a melting point above 300.degree. C. deposited on a foam or metallic felt support layer such that the layer of inorganic compound sinks to part of its depth into the support layer to define a composite layer (17) |
| 5507897 |
Process for the preparation of a target component for cathode sputtering |
April 16, 1996 |
| A target element is formed by creating a precursor system which may yield an inorganic material at a temperature of 300-1600 C. which is lower than the melting point of said material. The precursor system contains an inorganic additive having a melting point no higher than. The precursor |
| 5494650 |
Process for improving the sulphur yield of a complex for producing sulphur from a sour gas conta |
February 27, 1996 |
| A process is provided for the improvement of the sulphur yield of an assembly which produces sulphur from H.sub.2 S and which consists of a sulphur plant (1), an oxidation and hydrolysis unit (2) and a purification unit (3). The sulphur plant in producing sulphur provides a residual gas |
| 5477001 |
Recombinant DNA coding for a novel protein having .beta.-1,3-glucanase activity, bacteria contai |
December 19, 1995 |
| The invention provides a protein, isolated from soybean, having .beta.-1,3-glucanase activity and comprising the amino acid sequence of SEQ ID No: 1. DNA constructs encoding said protein, and transformed plants expressing the protein, are also provided. |
| 5451391 |
Process for the synthesis of a crystalline aluminosilicate enriched in silica, having the struct |
September 19, 1995 |
| Process for the preparation of a crystalline aluminosilicate enriched in silica, having the structure of mazzite, by hydrothermal crystallization of a gel containing sources of silicon, aluminum and alkali metal ions, in the presence of an organic structuring agent, characterized in that |
| 5447709 |
Process for the synthesis of zeolites belonging to the faujasite structural family |
September 5, 1995 |
| Process for the synthesis of faujasite, having a Si/Al ratio greater than 1 and which can exceed 3, in the presence of a structuring agent consisting of at least one carbonaceous macrocycle having 10 to 24 atoms per ring and containing heteroatoms chosen from oxygen, nitrogen, sulphur or |
| 5446138 |
Recombinant DNA coding for a protein with endochitinase activity |
August 29, 1995 |
| Recombinant DNA which codes for a protein with endochitinase activity or for a precursor thereof, comprising the sequence (a1) (SEQ ID NO. 1). |
| 5434285 |
Chiral phosphinite-boranes and their preparation and use |
July 18, 1995 |
| The present invention relates, by way of novel industrial products, to the phosphinite-borane compounds of the general formula ##STR1## in which R.sup.1 and R.sup.2, which are identical or different, are each a C.sub.1 -C.sub.18 -alkyl group, a C.sub.5 -C.sub.18 -cycloalkyl group, a |
| 5426201 |
Preparation of manganous enolates and its applications |
June 20, 1995 |
| A method of preparing manganous enolates by the treatment of alkali metal or alkaline earth metal enolates with manganous compounds in a solvent for the Mn enolate to be prepared. |
| 5401644 |
Process of producing conventional or non-viscous xanthan by action of xanthomonas campestrisCNCM |
March 28, 1995 |
| The present invention relates toa mutant strain of Xanthomonas campestris;a method of preparing xanthan by fermentation of said strain; anda non-viscous xanthan capable of being obtained by said method. |
| 5395646 |
Process for the protection of solid surfaces, particularly coastal areas, against pollution by h |
March 7, 1995 |
| A process affording protection to solid surfaces and especially coastal areas against hydrocarbon pollution involves applying a protective layer composed of polysaccharides containing pendant carboxyl groups, such as alginates or lightly methylated pectins. |
| 5393511 |
Synthesis of zeolites of faujasite structure |
February 28, 1995 |
| A process is provided for the preparation of zeolites belonging to the faujasite structural class and exhibiting a Si:Al ratio higher than 1 in which a reaction mixture is first produced, which has a pH higher than 10 and contains water, a source of tetravalent silicon, a source of triva |
| 5385717 |
Process for the synthesis of zeolites having an aluminosilicate framework belonging to the fauja |
January 31, 1995 |
| An aluminosilicate gel containing a structuring agent ST and having a composition appropriate for crystallizing as a zeolite of the faujasite structural family is prepared and then subjected to a crystallization to form a zeolite precursor consisting of the said zeolite containing the |
| 5370858 |
Process for the synthesis of zeolites having an aluminosilicate framework belonging to the fauja |
December 6, 1994 |
| An aluminosilicate gel containing a structuring agent ST and having a composition appropriate for crystallizing as a zeolite of the faujasite structural family is prepared, and then subjected to a crystallization to form a zeolite precursor consisting of the said zeolite containing the |
| 5330015 |
Application of scleroglucan muds to drilling deviated wells |
July 19, 1994 |
| A method for drilling deviated or horizontal wells is facilitated by the use of a scleroglucan-containing aqueous drilling mud. The use of such drilling muds is environmentally and economically advantageous over the use of oil-based drilling muds and is superior to the use of other a |
| 5323857 |
Process for enhancing oil recovery using scleroglucan powders |
June 28, 1994 |
| The present invention is directed to a process for improving the dispersibility and the filterability of scleroglucan powders, in which a surfactant is incorporated in the coagulated polymer. The powder obtained according to the process has a dispersibility and a filterability after |
| 5320731 |
Iontophoresis device for transcutaneous administration of a given total quantity of an active pr |
June 14, 1994 |
| The iontophoresis device for transcutaneous administration of the active principle to the subject comprises electrodes, at least one of which is a consumable electrode formed of an electrochemically consumable material associated either with an insulating support or with a particular |
| 5314674 |
Process for the synthesis of a zeolite of MTT type, products obtained and their application in a |
May 24, 1994 |
| Process for the synthesis of a zeolite of MTT type in the absence of any nitrogenous organic agent, from a reaction mixture containing water, a source of tetravalent silicon and ethanol and optionally a source of trivalent aluminium and a source of hydroxide ions. The products obtained |
| 5310534 |
Process for dealuminization of the synthetic zeolites of large pores, catalysts and selective or |
May 10, 1994 |
| A process is provided for dealuminization of zeolites having large pores, the diameter of the aperture of the pores being greater than or equal to about 0.7 nm and the silica/alumina ratio greater than or equal to about 6. The process comprises acid leaching of the raw zeolite containing |
| 5306340 |
Scleroglucan-based compositions and their use as a cementation spacer |
April 26, 1994 |
| Use of scleroglucan alone or of mixtures of scleroglucan with a polyalcohol or a dialdehyde as cementation spacers during oil drilling operations. |
| 5304601 |
Catalysts based on a faujasite and its application |
April 19, 1994 |
| A catalyst is provided which contains 1 to 99 wt. % of an inorganic binder and 99 to 1% of a zeolite consisting of a faujasite having an Si:Al synthesis ratio at least equal to 3 and 30 and the compensation cations of this zeolite consist partly or wholly of cations of one or more elemen |
| 5302810 |
Method for rapid and uniform heating of a multilayer assembly comprising at least one thin layer |
April 12, 1994 |
| Between the high electronic conduction structures of the multilayer assembly an electric voltage signal is applied of which at least one portion includes an alternating component which has an amplitude between 0.05 and 100 volts and a frequency lower than 5 kHz and preferably between |
| 5299638 |
Process for transporting particles in a porous medium |
April 5, 1994 |
| The invention relates to an improved method for injecting and transporting small particles in a natural porous medium. The method is characterized in that, in a first step, the porous medium is conditioned by means of an aqueous solution containing a hydrocarbonaceous compound, polymers |
| 5298156 |
Simultaneous decarbonation and gasoline stripping of hydrocarbons |
March 29, 1994 |
| Process for the simultaneous decarbonation and gasoline stripping of a gaseous mixture at an absolute pressure higher than 0.5 MPa containing methane, C.sub.2 and higher hydrocarbons and CO.sub.2 in which a demethanized rich solvent is regenerated so the process can be carried out mo |
| 5294348 |
Process for removing ammonia from waste waters |
March 15, 1994 |
| A method for removing ammonia, or ammonia and phosphates from industrial agricultural or household effluents by causing precipitation as magnesium ammonium phosphate by means of a liquid reagent containing magnesium and phosphate ions and an acid. The effluents have more than 1 gle of |
| 5283219 |
Active composite and its use as reaction medium |
February 1, 1994 |
| An active composite consists of a compressed support and an agent which reacts with a gas. According to the invention, the compressed support comprises recompressed expanded graphite having a density between 0.02 and 1.5. A process for implementing gas-solid type reactions in which said |
| 5277791 |
Zeolite from the class of mazzite, process for its synthesis, and its use as a catalyst |
January 11, 1994 |
| This invention relates to a new zeolite from the class of mazzite, containing a fraction of non-exchangeable potassium cations, and also to a process for its synthesis. The crystallinity and the adsorption capacity of the protonated form of this zeolite are maintained after a prolonged |
| 5276547 |
Electrochromic element, materials for use in such element, processes for making such element and |
January 4, 1994 |
| An electrochromic element useful in an electrochromic glass or mirror device and a process for making such element. The element is a five-layered structure including an electrolyte ion conducting layer interposed between first and second inorganic electrochromic layers which are inte |
| 5274493 |
Electrochromic element, materials for use in such element, processes for making such element and |
December 28, 1993 |
| An electrochromic element useful in an electrochromic glass or mirror device and a process for making such element. The element is a five-layered structure including an electrolyte ion conducting layer interposed between first and second inorganic electrochromic layers which are inte |
| 5273945 |
Zeolite catalyst of hexagonal structure and its application |
December 28, 1993 |
| A catalyst is provided which contains 1 to 99 wt. % of a zeolite related to faujasite and having a hexagonally symmetrical structure and an Si:Al ratio between 3 and 30. The compensation cations of this zeolite consist partly or wholly of cations of one or more elements chosen from H, B, |
| 5268994 |
Method of plotting surfaces in a 3D volume |
December 7, 1993 |
| A method for plotting the surfaces in a 3D volume configured in the form of columns distributed over the nodes of a grid with the aid of 2D plotting algorithms by classifying the columns by way of a Peano-Hilbert curve. |
| 5264602 |
Chiral phosphinite-boranes, their preparation and uses |
November 23, 1993 |
| This invention is concerned with new chiral diphosphinite-borane compound of the formula ##STR1## wherein R.sup.1 and R.sup.2, identical or different, represent each a C.sub.1 -C.sub.18 alkyl, C.sub.5 -C.sub.18 cycloalkyl, C.sub.7 -C.sub.18 aralkyl or C.sub.6 -C.sub.14 aryl group |
| 5262525 |
Method for the chemical modification of proteins |
November 16, 1993 |
| Method for the chemical modification of proteins using a reagent of general formula ##STR1## obtained from the diene ##STR2## and maleic anhydride by Diels-Alder addition. |
| 5262373 |
Process for the synthesis of metal oxides of high specific surface area and high porosity, oxide |
November 16, 1993 |
| A process is provided for the synthesis for metal oxides of high specific surface area and high porosity which are particularly useful as catalyst supports. The process comprises forming a mixture of a salt of at least one metal and a molten salt medium comprising at least one alkali met |
| 5260145 |
Production of organic cation radicals in an electrochemical cell |
November 9, 1993 |
| Process for producing organic cation radicals using anodic oxidation of an organic molecule in an electrochemical cell containing two electrodes upon which opposite polarity may be established and a liquid electrolyte which is an ion conductive material comprising a salt in solution in a |
| 5256821 |
Method of synthesis of sulphonylimides |
October 26, 1993 |
| Method for the synthesis of sulfonylimidides having the formula M((RSO.sub.2).sub.2 N).sub.y, wherein M is a metal or an ammonium radical quaternary or not, the Rs, which may be identical or similar are organic monovalent radicals, particularly hydrocarbyles and preferably perfluoroh |
| 5250784 |
Method and device for cutting a multilayer assembly composed of a plurality of thin films and co |
October 5, 1993 |
| At least one laser beam is focused on one side of an assembly to be cut at a point on the side which is part of the cutting profile and which is called the point of impact of the beam on side side, in order to cause at that point a disintegration of the material of the assembly. The lase |
| 5246902 |
Synthetic microporous solids containing gallium and phosphorous, their synthesis and their use a |
September 21, 1993 |
| This invention relates to a crystalline synthetic microporous solid containing gallium and phosphorus, whose crystal structure is of the LTA type.After calcination at a temperature above 200.degree. C. the solid obtained can be employed as a catalyst for converting hydrocarbons or as an |
| 5243409 |
Apparatus for measuring optical density in situ |
September 7, 1993 |
| A device for measuring in situ, the optical density of a sample in a medium, in which the immersed sample has a main part with a slot at one end. A mobile part can be lodged in this slot. This mobile part has an open chamber which moves with the mobile part into the slot. This open c |
| 5233304 |
Electromagnetic source integrated into an element of a well casing |
August 3, 1993 |
| Electromagnetic source intended to be placed permanently in a drill well for studying the electromagnetic properties of the geological formations or of the fluids surrounding the well. This source consists of a coil through which a high current is circulated and which is of a diameter of |
| 5224988 |
Process for improving the dispersibility and filterability of scleroglucan powders |
July 6, 1993 |
| Process for improving the dispersibility and the filterability of scleroglucan powders, in which a surfactant is incorporated in the coagulated polymer. The powder obtained according to the process has a dispersibility and a filterability after drying of the coagulum which are greatl |
| 5215681 |
Concentrated liquid solutions of scleroglucan |
June 1, 1993 |
| The invention relates to new concentrated liquid solutions of polysaccharides, characterized in that they are prepared by ultrafiltration of a dilute solution of polymer to which a surface-active agent has been added.The solutions can be employed, after dilution, in particular as a t |
| 5179518 |
Method of processing seismic reflection data in order to obtain improved seismic sections |
January 12, 1993 |
| A method of processing seismic recordings in order to obtain an improved seismic section by taking into account, during summing, the real geometric configuration of the alignments of signals in the collection of elementary recordings before sum. |
| 5165906 |
Zeolite from the class of mazzite, process for its synthesis, an its use as a catalyst |
November 24, 1992 |
| This invention relates to a new zeolite from the class of mazzite, containing a fraction of non-exchangeable potassium cations, and also to a process for its synthesis. The crystallinity and the adsorption capacity of the protonated form of this zeolite are maintained after a prolonged |
| 5162177 |
Ion conductive material composed of a salt in solution in a liquid electrolyte |
November 10, 1992 |
| Ionically conductive material consisting essentially of a salt diluted in a liquid aprotic solvent. The salt is represented by one of the following formulas: ##STR1## where M is an alkaline or alkaline earth metal, a transition metal or a rare earth metal. |
| 5158757 |
Synthesis of gallosilicate zeolites having faujasite structure |
October 27, 1992 |
| Disclosed is a process for the preparation of zeolites having a gallosilicate skeleton and belonging to the structural class of faujasite in which there is first formed a precursor of the zeolite which entraps a structuring agent which is thereafter destroyed by calcining wherein the |
