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Searching: chemistry





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Patent # Description
US-5,719,911 System for monitoring noble metal distribution in reactor circuit during plant application
A system for ensuring the distribution of noble metal in the reactor circuit during plant application without measuring the reactor water for noble metal content...
US-5,719,060 Method and apparatus for desorption and ionization of analytes
This invention relates generally to methods and apparatus for desorption and ionization of analytes for the purpose of subsequent scientific analysis by such...
US-5,717,083 Phosphoramidate and phosphorothiomidate oligomeric compounds
Compounds are provided having structure (I), wherein the L groups are backbone segments, the Y and T groups are functional groups for interacting with target...
US-5,717,039 Functionalization of polymers based on Koch chemistry and derivatives thereof
A Koch functionalized product which is the reaction product of at least one polymer having a number average molecular weight of at least 500 and at least...
US-5,714,563 One-part, low viscosity, moisture curable composition
A one-part, low viscosity, moisture curable composition which exhibits excellent shelf stability in the absence of water, but which quickly cures at ambient...
US-5,714,126 Respirator filter system
The present invention provides a respirator filter system suitable for filtering toxic agents, including organic vapors, acid gases, formaldehyde, ammonia, and...
US-5,714,086 Propargyl ether-containing compositions useful for underfill applications
In accordance with the present invention, there are provided novel propargyl ether-based compositions that are very effective when used in underfill...
US-5,713,348 Endotracheal tube connector and method for optimizing the breathing ability of an intubated patient
A method for optimizing the breathing ability of an intubated patient is based on an evaluation of the expirational flow characteristics of an endotracheal tube...
US-5,712,263 Steroid derivatives
To provide novel steroid derivatives having an antitumor action which can be synthesized efficiently and stereoselectively by means of synthetic organic...
US-5,710,259 Oligosaccharide-containing 14-aminosteroid compounds and novel diastereoselective aminosteroid process chemistry
The present invention relates to oligosaccharide-containing 14-aminosteroid compounds and the pharmaceutically-acceptable acid salts or esters thereof of the...
US-5,710,247 Process and intermediates for the synthesis of LHRH antagonists
A method is provided for preparing decapeptide and undecapeptide derivatives of LHRH by solution phase peptide chemistry as well as intermediate peptides useful...
US-5,710,246 Process for intermediates for the synthesis of LHRH antagonists
A method is provided for preparing decapeptide and undecapeptide derivatives of LHRH by solution phase peptide chemistry as well as intermediate peptides useful...
US-5,708,000 N4-substituted cytosinyl 1,3-oxathiolane nucleoside analogues, and their antiviral activity
The present invention pertains to the field of organic chemistry, and particularly therapeutic chemistry. The invention provides cis-form 5-(cytosinyl-1)...
US-5,705,507 Aplha-substituted-3-benzyl-benzofurans
This invention relates to the fields of pharmaceutical and organic chemistry and provides novel 3-benzyl-benzofurans which are .alpha.-substituted with ether,...
US-5,705,428 Method for preventing titanium lifting during and after metal etching
A process for forming metal composites, using a titanium underlay as part of the composite, with reduced risk of titanium adhesion loss or lifting, has been...
US-5,703,256 Functionalization of polymers based on Koch chemistry and derivatives thereof
A Koch functionalized product which is the reaction product of at least one polymer having a number average molecular weight of at least 500 and at least...
US-5,700,726 Multi-layered tungsten depositions for contact hole filling
A process for filling small diameter contact holes, with tungsten, has been developed. This process consists of using two consecutive tungsten depositions. A...
US-5,699,157 Fourier detection of species migrating in a microchannel
The present invention provides a microfluidic system for fast, accurate and low cost electrophoretic analysis of materials in the fields of chemistry, ...
US-5,698,722 Functionalization of polymers based on Koch chemistry and derivatives thereof
A Koch functionalized product which is the reaction product of at least one polymer having a number average molecular weight of at least 500 and at least...
US-5,697,046 Composite cermet articles and method of making
Methods for making, methods for using and articles comprising ferromagnetic cermets, preferably cemented carbides and more preferably tungsten carbide, having at...
US-5,697,042 Composite cermet articles and method of making
Methods for making, methods for using and articles comprising cermets, preferably cemented carbides and more preferably tungsten carbide, having at least two...
US-5,696,064 Functionalization of polymers based on Koch chemistry and derivatives thereof
A Koch functionalized product which is the reaction product of at least one polymer having a number average molecular weight of at least 500 and at least one...
US-5,691,486 Apparatus and methods for selecting a variable number of test sample aliquots to mix with respective reagents
A method and apparatus for selecting a subset of a predetermined number of test sample aliquots to mix with respective reagents using a shear valve having a...
US-5,691,465 Multi-plate thin film carbon monoxide sensor
A gas detector, preferably for carbon monoxide detection, which includes a light detector(5), a light source (1) for providing a light beam which travels along a...
US-5,686,244 Method for detecting a nucleic acid analyte using an improved electrochemiluminescent label
This invention relates to a new electrochemiluminescent (ECL) label for oligonucleotides using phosphoramidite chemistry.
US-5,686,119 Composite cermet articles and method of making
Methods for making, methods for using and articles comprising cermets, preferably cemented carbides and more preferably tungsten carbide, having at least two...
US-5,684,387 Voltage cutoff compensation method for a battery in a charger
A battery charging system (300) is capable of maintaining a fully charged battery (304) without overcharging or undercharging the battery regardless of the...
US-5,681,977 Method for the production of (3-alkoxycarbonyl-2-butenyl) triphenylphosphonium salts
Novel processes and intermediates useful for the manufacture of the Wittig ester salts are disclosed. The Wittig ester salts are known as important C.sub.5...
US-5,679,445 Composite cermet articles and method of making
Methods for making, methods for using and articles comprising cermets, preferably cemented carbides and more preferably tungsten carbide, having at least two...
US-5,677,231 Method for providing trench isolation
A trench isolation region (32) is fabricated to include a trench liner (28) comprised of aluminum nitride. The aluminum nitride trench liner is useful in...
US-5,677,133 Dry chemistry cascade immunoassay and affinity assay
A method is described for performing an affinity assay comprising contacting a sample to be assayed for the presence of an analyte with a dry reagent containing...
US-5,677,042 Composite cermet articles and method of making
Methods for making, methods for using and articles comprising cermets, preferably cemented carbides and more preferably tungsten carbide, having at least two...
US-5,670,495 Method of pretreating an animal with a corticosteroid prior to infusion of a perfluorochemical emulsion
This invention is directed to a method of attenuating or preventing the adverse side-effects of a perfluorochemical (PFC) emulsion on the hemostatic system and...
US-5,670,329 Method and analytical system for performing fibrinogen assays accurately, rapidly and simply using a rotating...
A method of performing a quantitative fibrinogen assay is provided which uses a dry reagent chemistry in combination with a rotational magnetic field and which...
US-5,669,029 Photographic processing
A method of controlling the replenishment of a processing solution used for processing a photographic material in photographic processing apparatus, wherein...
US-5,667,963 Anticoagulant solution for use in blood chemistry-related techniques and apparatus
An anticoagulant solution of sodium citrate for use in blood chemistry-related techniques and apparatus is disclosed. The anticoagulant solution should include...
US-5,666,006 Circuit offering sequential discharge and simultaneous charge for a multiple battery system and method for...
A circuit enabling simultaneous independent charging, sequential charging and sequential discharging of multiple batteries within a computer system and a method...
US-5,665,620 Method for forming concurrent top oxides using reoxidized silicon in an EPROM
A stack of oxide (16) and silicon nitride (18) is grown/deposited over a patterned polysilicon line, which typically acts as a bottom capacitor plate. A thin...
US-5,660,991 Long lifetime anisotropy (polarization) probes for clinical chemistry, immunoassays, affinity assays and...
A method of conducting an immunoassay of a sample of interest is described, including the steps of (A) coupling a luminescent asymmetric metal-ligand complex to...
US-5,660,600 Batteries and materials useful therein
Batteries based on lead chemistry, e.g., lead-acid batteries, are substantially improved through the use of a particular positive material. This material is...
US-5,658,801 Medical test kit
A medical diagnostic test kit includes a rectangular flat bottom member having an external raised flange and an internal raised flange forming a cavity therein;...
US-5,656,241 Method for manufacturing fiber optic sensors
A method is provided-for manufacturing a fiber optic sensor for detecting or measuring a parameter of interest in a sample fluid, including pH, concentration of...
US-5,656,102 Bake hardenable vanadium containing steel and method thereof
Rolled articles such as hot rolled or cold rolled and annealed sheet and/or strip include effective amounts of vanadium in low carbon steels to produce an...
US-5,653,894 Active neural network determination of endpoint in a plasma etch process
The present invention is predicated upon the fact that a process signature from a plasma process used in fabricating integrated circuits contains information...
US-5,653,824 Magnetic strips and methods for making the same
Methods for preparing magnetic strips are provided in which the strips are manufactured to a thickness of less than about 0.005 inches and are made of a ferrous...
US-5,652,176 Method for providing trench isolation and borderless contact
A trench isolation region (32) is fabricated to include a trench liner (28) comprised of aluminum nitride. The aluminum nitride trench liner is useful in...
US-5,652,170 Method for etching sloped contact openings in polysilicon
Disclosed is a vertically oriented capacitor structure, which is of particular usefulness in MOS DRAM memory modules. The structure has upper and lower...
US-5,648,537 Process for the synthesis of substituted carbodiimides
The invention relates to a new process for the synthesis of a disubstituted carbodiimide, including a first stage of phosgenation of an N,N'-disubstituted urea...
US-5,648,201 Efficient chemistry for selective modification and metallization of substrates
A process for efficient modification and metallization of substrates includes the steps of providing a substrate with highly photoefficient chemical functional...
US-5,646,285 Combinatorial non-peptide libraries
The present invention relates to an orthogonally-protected compound of the formula: ##STR1## wherein PG.sub.1 is a first protecting group that is unreactive...
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