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Searching: chemistry





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Patent # Description
US-5,628,960 Composite cellulose nitrate membrane on polyester support
There is disclosed a composite isotropic cellulose nitrate membrane on a polyester support and a method of making the same, the membrane having particular...
US-5,625,656 Method for monitoring noble metal distribution in reactor circuit during plant application
A method for ensuring the distribution of noble metal in the reactor circuit during plant application without measuring the reactor water for noble metal content...
US-5,624,638 Modular laboratory equipment and coupling system
A personal, miniaturized, multipurpose test kit for performing a plurality of chemical tests and procedures, which include interchangeable multifunctional...
US-5,623,196 Apparatus and method of simulating high battery temperature in a rechargeable battery
A device (111) for simulating a high battery temperature used in charging a rechargeable cell (101). The device takes advantage of a control signal generated by...
US-5,623,109 Plant monitoring and diagnosing method and system, as well as plant equipped with the system
Plant operating conditions 1, apparatus operating conditions 2 and environment conditions 3 are accumulated, combined and put together as a set of plant status...
US-5,622,974 .alpha.-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-5,621,180 Capillary sampling flow controller
A capillary sampling flow controller provides an improvement in the process of sampling or monitoring for the analysis of air and gas chemistries; a constant...
US-5,620,615 Method of etching or removing W and WSi.sub.x films
The present invention teaches a method for etching or removing a tungsten (W) film and a tungsten silicide (WSi.sub.x) film during a semiconductor fabrication...
US-5,618,513 Method for preparing radiolabeled peptides
A method for radiolabelling peptides using polyaminocarboxylate ligands having suitable protecting groups such that they can be added to peptides by standard...
US-5,616,316 Dentifrice-compatible silica particulates
Novel silica particulates especially adapted for formulation to dentifrice compositions exhibit unique physical and chemical properties. In one embodiment,...
US-5,616,235 Electrochemical stabilization of soils and other porous media
Suitable electrolyte conditioning at the electrodes greatly facilitates the transport of desired ions through soil, enhancing the ability of electrokinetic...
US-5,614,177 Dentifrice-compatible silica particulates
Novel silica particulates especially adapted for formulation to dentifrice compositions exhibit unique physical and chemical properties. In one embodiment,...
US-5,614,176 Dentifrice-compatible silica particulates
Novel silica particulates especially adapted for formulation to dentifrice compositions exhibit unique physical and chemical properties. In one embodiment,...
US-5,612,020 Dentifrice-compatible silica particulates
Novel silica particulates especially adapted for formulation to dentifrice compositions exhibit unique physical and chemical properties. In one embodiment,...
US-5,610,017 Method for conducting a polymerase chain reaction using an improved electrochemiluminescent label
This invention relates to a new electrochemiluminescent (ECL) label for oligonucleotides using phosphoramidite chemistry.
US-5,609,775 Dry etch process for titanium-tungsten films
A method for dry etching a composite metal film, consisting of an aluminum overlay film, a titanium--tungsten film, and a titanium underlay film, is described....
US-5,604,242 Heterocyclic chemistry
The present invention relates to therapeutically active azaheterocyclic compounds, a method of preparing the same and to pharmaceutical compositions comprising...
US-5,603,351 Method and system for inhibiting cross-contamination in fluids of combinatorial chemistry device
A system and method for accomplishing a plurality of combinatorial processes in parallel comprising a microelectronic and fluidic array (device array) having...
US-5,601,991 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-5,599,695 Printing molecular library arrays using deprotection agents solely in the vapor phase
A method and apparatus for selectively applying a print material onto a substrate for the synthesis of an array of oligonucleotides at selected regions of a...
US-5,597,983 Process of removing polymers in semiconductor vias
A method for forming a contact via in an integrated circuit includes the formation of an aluminum conductive element on an integrated circuit device. A conformal...
US-5,597,910 Electrochemiluminescent label for DNA probe assays
This invention relates to a new electrochemiluminescent (ECL) label for oligonucleotides using phosphoramidite chemistry.
US-5,597,868 Polymeric anti-reflective compounds
Anti-reflective coatings and methods for forming these anti-reflective coatings are disclosed that have a polymer chemistry and optical characteristics suitable...
US-5,597,532 Apparatus for determining substances contained in a body fluid
An apparatus for the optoelectronic evaluation of test paper strips for use in the detection of certain analytes in blood or other body fluids. The test strip...
US-5,596,207 Apparatus and method for detecting defects in insulative layers of MOS active devices
A technique for quantifying the effect of plasma/etching during the formation of MOS transistors avoids the problems of prior techniques. A modified MOS...
US-5,593,795 Polymer electrolyte composition based upon thiol-ene chemistry
Electrolyte compositions in which a salt is disposed in a thiol-ene matrix. The compositions retain their shape under operating conditions and exhibit an ionic...
US-5,590,052 Error checking in blood analyzer
The present invention provides various methods for detecting errors in a blood analysis system. The system includes a blood analyzer and a molded plastic rotor...
US-5,589,348 In situ nicotinamide coenzyme generating system for enzyme based clinical chemistry assays
The invention relates to an improved enzymatic method for determining the concentration of an analyte in a sample body fluid. The improvement comprises a coupled...
US-D376,651 Semi-automated urine chemistry instrument
US-5,582,955 Chemical functionalization of surfaces
Methods for covalently modifying surfaces of various substrates are disclosed, along with various substrates having surfaces modified by such methods. Candidate...
US-5,582,679 Enhanced metal etch process
A method for dry etching metal films, specifically aluminum, is described. This process uses photoresist as a mask with a gas mixture of BCl3, Cl2 and N2 used...
US-5,580,854 Substrate-related peptidyl-aldehyde inhibitors of the proteolytic activity of the multicatalytic proteinase complex
The present invention provides novel peptidylaldehyde inhibitors of proteolysis mediated by the multicatalytic proteinase complex (MPC) or proteasome. The...
US-5,580,794 Disposable electronic assay device
A disposable electronic assay device comprising card-like housing containing a sample receptor for receiving a sample of body fluid containing an analyte to be...
US-5,580,697 Chemical functionalization of surfaces
Methods for covalently modifying surfaces of various substrates are disclosed, along with various substrates having surfaces modified by such methods. Candidate...
US-5,580,375 Prestabilization of particulate matter prior the dispersion
Disclosed is a method for the plating of a substrate with a composite coating bearing a metallic matrix with finely divided particulate matter dispersed therein....
US-5,578,769 Methods and apparatus for undisturbed subsurface soil chemistry sampling
A subsurface sampling system which is designed to avoid disturbance of the sample point allows for repetitive insertion of a sampling means, such as a resin...
US-5,577,083 Method and apparatus for electro-protection of piping systems and reactor-internals from stress corrosion cracking
A method and an apparatus for electrically suppressing electrochemical potential near highly susceptible components of a boiling water reactor. A small...
US-5,576,952 Medical alert distribution system with selective filtering of medical information
The present invention relates to a medical alert distribution system which receives medical information (e.g. blood pressure, blood chemistry test results, etc.)...
US-5,574,659 Dye transfer prints utilizing digital technology
Motion picture prints made with the dye transfer, or imbibition (IB) process have a reputation for superior image quality and permanence. The process offers...
US-5,574,146 Oligonucleotide synthesis with substituted aryl carboxylic acids as activators
A process for synthesizing oligonucleotides by phosphoramidite chemistry wherein the improvement is the use of substituted aryl carboxylic acids as the...
US-5,573,679 Fabrication of a surface micromachined capacitive microphone using a dry-etch process
Capacitive microphones are fabricated using etch-release of sacrificial silicon by an isotropic dry etchant. The process allows the production of a microphone...
US-5,571,020 Education device for assisting in the learning of keyboarding
Educational devices using process-oriented educational methods are disclosed to prepare pre-school children, school children, and teenagers for keyboarding. The...
US-5,565,417 Hybrid series transition metal polymer composite sets
The present invention provides a specific hybrid series of transition metal polymer matrix composite sets which create durable friction reducing, wear, and...
US-5,565,324 Complex combinatorial chemical libraries encoded with tags
Encoded combinatorial chemistry is provided, where sequential synthetic schemes are recorded using organic molecules, which define choice of reactant, and stage,...
US-5,558,968 Dendrimeric toner particles for liquid electrophotography
This invention comprises a single-component dendrimeric toner particle, and methods of making and using the toner particle in the liquid EP process. By using...
US-5,558,904 Electroluminescent devices containing a conjugated polymer obtained via halogen precursor route chemistry
An electroluminescent device includes a light emitting layer made of a conjugated polymer that is prepared using halogen precursor route chemistry.
US-5,556,485 Bake hardenable vanadium containing steel and method of making 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-5,553,617 Noninvasive method and apparatus for determining body chemistry
The body chemistry of a person is determined by directing a beam of light into the eye of the person, measuring the spectral response of the eye to the beam of...
US-5,552,346 Planarization and etch back process for semiconductor layers
An improved process for planarization of an integrated circuit structure having raised portions is provided. A conformal insulating layer is deposited over the...
US-5,549,784 Method for etching silicon oxide films in a reactive ion etch system to prevent gate oxide damage
The present invention discloses a method for the etching of insulating films, specifically silicon oxide films, using a fluorine-helium-oxygen gas mixture in the...
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