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Searching: chemistry





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Patent # Description
US-5,422,355 Composition for treating depression with (N-heteroaryl)alkylamines
The invention concerns compounds having formula: ##STR1## or a salt thereof, wherein E represents hydrogen, lower alkyl or a group Ar.sup.1 --A.sup.1 --; Ar...
US-5,421,911 Regular grain oriented electrical steel production process
The present invention provides a steel composition and method for producing a high quality regular grain oriented electrical steel having less than 0.005%...
US-5,420,081 Preparation of fullerene/glass composites
Synthesis of fullerene/glass composites. A direct method for preparing solid solutions of C.sub.60 in silicon dioxide (SiO.sub.2) glass matrices by means of...
US-5,419,872 Tube having regions of different surface chemistry
In a method to modify the chemistry of a portion of the surface of an article, the surface is placed adjacent an electrode in a plasma chamber, the distance to...
US-5,419,821 Process and equipment for reforming and maintaining electroless metal baths
Process and equipment for reforming and maintaining the chemistry of an electroless metal bath, particularly an electroless nickel bath is disclosed.
US-5,414,485 Oscillating drum for an apparatus for processing photographic materials
It is known to oscillate hollow processing drums to increase the agitation of the processing within the drum. However, these drums require a relatively large...
US-5,413,692 Hydrodynamically modulated hull cell
Electrodeposition in surface finishing as well as in electroforming can be performed in a broad range of hydrodynamic conditions. In some instances, such as...
US-5,412,868 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-5,412,447 Photographic processing apparatus
It is known to use continuous belts for transporting photographic material through large multi-stranded photographic processing machines so that the material is...
US-5,412,148 Amplifier molecules derived from diethylene triaminepentaacetic acid for enhancement of diagnosis and therapy
Disclosed are amplifier molecules: various organic compounds having branched structures terminating with amine groups to which pharmacologically active groups...
US-5,411,835 Dry photochromatic film
The photochromatic indicator is a dry film comprised of microencapsulated chemistry which reacts to the degradation of the dry film components when irradiated by...
US-5,411,537 Rechargeable biomedical battery powered devices with recharging and control system therefor
An improved hermetically-sealed automatic implantable cardioverter-defibrillator (AICD) or any other bioimplantable device which may be operated on a single...
US-5,410,068 Succinimidyl trityl compounds and a process for preparing same
The invention pertains to compounds and methods for the reversible modification of natural products, biopolymers or synthons for natural products or biopolymers,...
US-5,408,999 Fiber-optic probe for the measurement of fluid parameters
A fiber optic sensor suitable for measuring and monitoring fluid parameters, e.g. blood parameters such as carbon dioxide and oxygen partial pressure and...
US-5,407,599 Cyclopropylaklyl or -alkenyl or heterocyclic compounds, process for their preparation and their use in...
Disclosed and claimed are liquid-crystalline cyclopropylalkyl or -alkenyl or heterocyclic compounds, process for their preparation, and their use in ...
US-5,407,590 Transition metal/polymer matrix composite of transition metal dichalcogenides and polymers a lubricious and...
The present invention provides a transition metal/polymer matrix composite material which has durable, wear and corrosion resistant and friction reducing...
US-5,405,783 Large scale photolithographic solid phase synthesis of an array of polymers
A technique for the synthesis of arrays of diverse polymers such as polypeptides and nucleic acids. The technique beneficially utilizes solid-phase chemistry...
US-5,405,585 Fluid delivery system utilizing multiple port valve
The present invention is directed to the implementation of a multi-port rotary valve in an automated chemistry processing instrument which reduces chemical...
US-5,405,583 Solid state sensor for carbon monoxide
A solid state optical sensor for CO has a sensing material which includes a molybdenum, tungsten or vanadium color forming agent; a palladium, ruthenium or...
US-5,399,590 Quaternary ammonium salts and pharmaceutical compositions containing them
The invention relates to the field of organic chemistry and more particularly to that of therapeutic chemistry. More particularly it relates to new quaternary...
US-5,399,497 Capsule chemistry sample liquid analysis system and method
An analysis method and apparatus comprises feeding a stream of fluid capsules in a fluid conduit for flow therethrough by forming a film of isolating liquid on...
US-5,398,268 Nuclear power plant having a water chemistry control system for a primary cooling system thereof and an...
A water chemistry factor which is specific to a specific portion of a primary cooling system and universal is decided to be a standard target. The concentration...
US-5,397,534 Method for controlling crevice chemistry on the secondary side of a pressurized water reactor steam generator
A method for detecting pH imbalances and/or achieving pH balance in crevices of a pressurized water reactor steam generator. The method comprises obtaining...
US-5,393,635 Chelating negative charge director for liquid electrographic toner
The invention is a negative charge director for liquid electrographic toners. The charge director comprises a very weakly associating, charged functional group...
US-5,393,609 Weatherable powder coatings
This invention provides weatherable thermosetting powder coating compositions based on 1,2-cyclohexanedicarboxylic acid and ...
US-5,389,523 Liposome immunoanalysis by flow injection assay
A method of immunoanalysis combines immobilized immunochemistry with the technique of flow injection analysis, and employs microscopic spherical structures...
US-5,389,229 Prestabilization of particulate matter prior to their 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-5,389,135 Chemistry to prevent the build up of hard ash deposits on equipment
The instant invention comprises a method of preventing ash deposition on equipment comprising adding a hemicellulose extract to phosphonate to form a mixture....
US-5,389,118 Abrasive tool having film-covered CBN grits bonded by brazing to a substrate
The invention concerns in one aspect a CBN abrasive tool comprising a metal, ceramic or cemented carbide substrate and a single layer of CBN grits bonded to said...
US-D354,559 Blood chemistry sensor assembly
US-5,380,804 1,3,5-tris-(2-carboxyethyl) isocyanurate crosslinking agent for polyepoxide coatings
Novel curable compositions based on carboxy/epoxy chemistry and cured coatings produced thereby are provided. The curable compositions employ ...
US-5,380,559 Electroless metallization of optical fiber for hermetic packaging
An electroless process has been developed to deposit nickel and gold onto optical fibers using aqueous chemistry. The key to the process is a sensitization of a...
US-D354,347 Blood chemistry sensor assembly
US-5,378,318 Planarization
A method for improved planarization of surface topographies encountered in semiconductor processing that involve the etch-back of exposed surfaces of an oxide of...
US-5,377,673 Intrauterine monitoring device
An improved fetal monitoring device which incorporates sensors which permit the monitoring of inutero fetal heart rate, oxygen saturation, blood chemistry and...
US-5,374,503 Method of forming patterned polyimide films
A method of producing patterned polyimide films using wet development of polyimide precursors through a photoresist mask is disclosed. Low thermal coefficient of...
US-5,372,673 Method for processing a layer of material while using insitu monitoring and control
A method for planarizing a layer (18) begins by forming a layer (18) over a wafer having a substrate (12). Layer (18) has a surface topography which is not...
US-5,370,871 Therapeutic suppression of specific immune responses by administration of oligomeric forms of antigen of...
The present invention relates to a vaccine derived from a bacterial or virus product that initially comprises a mixture of polymers of varying molecular weights....
US-5,370,114 Non-invasive blood chemistry measurement by stimulated infrared relaxation emission
An apparatus for measuring the concentration of a selected solute in a solution. This apparatus is particularly suitable for measuring the concentration of blood...
US-5,368,687 Semiconductor processing method of etching insulating inorganic metal oxide materials and method of cleaning...
In one aspect of the invention, a semiconductor processing method includes the following steps: a) providing a layer of an insulating inorganic metal oxide...
US-5,365,775 Process for automatic measurement of specific filtration resistance and electrostatic charge of a fibrous...
A method is provided to monitor specific filtration resistance, total drainage resistance and drainage flow rate in a continuous on-line manner in the paper...
US-5,364,510 Scheme for bath chemistry measurement and control for improved semiconductor wet processing
A feedback control system for providing automated and in-situ control of multi-component chemical concentrations in a liquid bath used for semiconductor...
US-5,358,875 Method and composition for halohydrocarbon detection
A sensing chemistry for halogenated hydrocarbons includes pyridine or a pyridine derivative and a strong organic alkoxide base. The sensing chemistry may be in a...
US-5,357,306 Photographic processing apparatus
In photographic processing, the chemistry needs to be replenished periodically in order to produce optimum results. Known replenishment systems utilize...
US-5,356,756 Application of microsubstrates for materials processing
Arrays of microfabricated hotplates have been used as substrate arrays for materials processing on a microscopic scale. Properties of individual elements...
US-5,352,411 Device for determination of tear constituents
A device for determination of a tear constituent, including an absorbent tear strip wick and an electrochemical strip connected to one end of the wick. The...
US-5,352,330 Process for producing nanometer-size structures on surfaces using electron beam induced chemistry through...
The process of using electron beam induced stimulated desorption chemistry to produce structures of nanometer order size on surfaces. By passivating a...
US-5,350,781 Process for the production of polyurethane foams
A process for the production of polyurethane foams by reacting a reaction mixture consisting essentially of a) a polyisocyanate component, with b) a polyol component...
US-5,348,684 Organosilylalkyl or organosilylalkenyl compounds, process for preparing them and their use in...
The novel silylalkyl or silylalkenyl compounds correspond to the general formula (I) ##STR1## Here the symbols A.sup.1, A.sup.2, A.sup.3 denote aromatic or ...
US-5,342,943 Preparation of 1H pyrazolo [3,2-c]-S-triazole compounds
Process for the formation of 1-H-pyrazolo[3,2-C]-1,2-4-triazoles useful in photographic chemistry as magenta couplers. The products have chlorine or bromine...
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