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| Patent # | Description |
|---|---|
| US-4,839,323 |
Insoluble complex oxidation catalysts Insoluble complex oxidation catalysts comprising chromium salts bound on an insoluble polymer supports having pendant pyridine groups, that are useful in... |
| US-4,839,322 |
High surface area polymers of pyrrole or copolymers of pyrrole Polymers of pyrrole or copolymers of pyrrole are obtained having high surface area and low conductivity. Such polymers and copolymers are useful in forming... |
| US-4,839,321 |
Solid catalyst component for olefin polymerization catalysts A solid catalyst component for olefin polymerization catalysts prepared by subjecting diethoxymagnesium (a), calcium chloride (b) and a silicon compound (c) of... |
| US-4,839,320 |
Method for treating and stabilizing zeolite catalysts This invention relates to a method for treating zeolite-containing catalysts. It is particularly suitable for making catalytic compositions made up of large pore... |
| US-4,839,319 |
Hydrocarbon cracking catalysts and processes for utilizing the same A catalyst is provided which comprises a phosphorus-treated ultrastable Y-type crystalline zeolite and a non-zeolitic inorganic oxide matrix. A catalytic... |
| US-4,839,318 |
Method for production of finely porous article using smectite mineral as
main component A finely porous article is produced by a method which comprises preparing a colloidal liquid phase containing silica particles by the addition of an ion-exchange... |
| US-4,839,317 |
Lightweight heat-insulating tundish coating material An interior coating material for continuous caster tundishes which consists of a mixture of 5 to 60% by weight of a lightweight magnesia aggregate having a bulk... |
| US-4,839,316 |
Protective coating for alumina-silicon carbide whisker composites Ceramic composites formed of an alumina matrix reinforced with silicon carbide whiskers homogenously dispersed therein are provided with a protective coating for... |
| US-4,839,315 |
Process for the production of ceramic materials having heat and wear
resistance Heat- and wear-resistant ceramic materials is produced by sintering a composition until Ti cannot be detected as the metallic phase, said composition comprised... |
| US-4,839,314 |
Chemically durable, high index, low density glasses This invention is directed to the production of glasses especially suitable for use as ophthalmic lenses which exhibit indices of refraction between about... |
| US-4,839,313 |
Glaze compositions for ceramic substrates Glaze compositions for ceramic substrates such as an alumina substrate are described. In a first embodiment, the glaze composition consists of 55 to 75 mol %... |
| US-4,839,312 |
Fluorinated precursors from which to fabricate amorphous semiconductor
material A method producing a solid semiconductor film characterized by a low density of defect states in the energy gap thereof by the glow discharge deposition of a... |
| US-4,839,311 |
Etch back detection An improved method for the etch-back planarization of interlevel dielectric layers provides for cessation of the etch-back upon exposure of an indicator layer.... |
| US-4,839,310 |
High mobility transistor with opposed-gates Horizontal and vertical transistors, such as, HEMT/SDHT devices are described with opposed gates for preventing substrate leakage current along with the methods... |
| US-4,839,309 |
Fabrication of high-speed dielectrically isolated devices utilizing
buried silicide outdiffusion A method of fabricating a dielectrically-isolated structure is disclosed rein the structure includes a layer of silicide which is selectively doped, preferably... |
| US-4,839,308 |
Method of making an external-coupled-cavity diode laser A monolithic external-coupled-diode laser structure uses high reflectivity facet coatings to reduce the operating current and to improve suppression of unwanted... |
| US-4,839,307 |
Method of manufacturing a stripe-shaped heterojunction laser with unique
current confinement A semiconductor laser having an internal current restriction includes a (100) face-oriented p-type GaAs substrate treated to have a groove or difference in level... |
| US-4,839,306 |
Method of manufacturing a trench filled with an insulating material in a
semiconductor substrate A method of manufacturing a trench filled with an insulation material in a semiconductor substrate which includes the steps of forming a trench in the substrate,... |
| US-4,839,305 |
Method of making single polysilicon self-aligned transistor A self-aligned, single polysilicon transistor is fabricated using nitride spacers (26, 68) to self-align the extrinsic base regions ( 48,80). The space between... |
| US-4,839,304 |
Method of making a field effect transistor with overlay gate structure For reduction in parasitic capacitance of a overlay gate structure, there is disclosed a process of fabricating a MES type field effect transistor comprising the... |
| US-4,839,303 |
Planar bipolar transistors including heterojunction transistors and
method A bipolar transistor is constructed to include a substrate, a collector layer epitaxial grown on the substrate and a base layer ion implanted in the collector... |
| US-4,839,302 |
Method for fabricating bipolar semiconductor device In a method for fabricating a favorable bipolar semiconductor device in which the extrinsic base and emitter diffusion holes are formed in self-alignment, an... |
| US-4,839,301 |
Blanket CMOS channel stop implant employing a combination of n-channel
and p-channel punch-through implants A CMOS transistor is fasbricated by forming the n-wells with both phosphorus and arsenic implants. The arsenic, with its lower diffusion coefficient, tends to... |
| US-4,839,300 |
Method of manufacturing semiconductor device having trapezoidal shaped
substrate sections A method for manufacturing a semiconductor device using inclined stage of a dicing saw in order to cut the semiconductor substrate obliquely with respect to the... |
| US-4,839,299 |
Assay for the free portion of substances in biological fluids A biological sample containing an analyte, partly free and partly bound to natural binders, is incubated with a labelled specific binder for the analyte and a... |
| US-4,839,298 |
Virus inactivating diluents used in immunoassays Diluent compositions for preparing specimens for immunoassay contain effective amounts of salt and non-ionic surfactants to inactivate viruses in the specimens... |
| US-4,839,297 |
Test carrier and method for the analytical determination of a component
of a body fluid The present invention provides a test carrier (1) for the analytical determination of a component of a body fluid with a base layer (2) and at least two planar... |
| US-4,839,296 |
Blood plasma test method Single or multiple blood plasma component concentrations are measured by a disposable stick having one or more blood plasma component reactive areas covered by a... |
| US-4,839,295 |
Measurement of protein using bicinchoninic acid Cu.sup.+ produced during the reaction of protein with alkaline Cu.sup.++ can be monitored by measuring the absorbance at 562 nm of the intense purple complex... |
| US-4,839,294 |
Colorimetric assay and methods for using same This invention relates to an assay useful for the evaluation of the lipid content of a biological fluid and its content in aqueous dispersion. The assay of the... |
| US-4,839,293 |
DNA encoding streptavidin, streptavidin produced therefrom, fused
polypeptides which include amino acid... DNA which encodes the polypeptide streptavidin has been isolated as a fragment 2 kb in length derived from a restriction endonuclease digestion of the... |
| US-4,839,292 |
Cell culture flask utilizing a membrane barrier A cell culture flask includes a hollow housing and a gas permeable membrane disposed within the housing which divides the housing into a first chamber and a... |
| US-4,839,291 |
Disposable biological indicator test pack for monitoring steam and
ethylene oxide sterilization cycles A disposable test pack for monitoring the efficacy of steam or ethylene oxide sterilization cycles includes a fiber board housing for a bioligical indicator. The... |
| US-4,839,290 |
Process for producing cytotoxic T-cells and compositions produced by
said process A method of inducing antitumor immunocytes which is simple in operation and suitable for inducing antitumor immunocytes having not only excellent cytotoxic... |
| US-4,839,289 |
Monoclonal antibodies to a broad range of mammalian terminal
deoxynucleotidyl transferases Murine monoclonal antibodies specific to unique antigenic determinants on mammalian terminal deoxynucleotidyl transferases (TdT). The monoclonal antibodies... |
| US-4,839,288 |
Retrovirus capable of causing AIDS, antigens obtained from this
retrovirus and corresponding antibodies and... The invention relates to a new variety of retroviruses designated human immunodeficiency virus type II, HIV-II, samples of which have been deposited at CNCM as... |
| US-4,839,287 |
Process for the transesterification of triglycerides in an aqueous
microemulsion reaction medium in the... A process is provided for the rapid transesterification of triglycerides with fatty acids in the presence of lipase enzyme, using an aqueous microemulsion... |
| US-4,839,286 |
Method of biosynthesis and cells therefor An expression vector having two structural genes that form a synthetic operon expressed under the control of a single regulatory sequence. The operon genes... |
| US-4,839,285 |
Method for production of cytidine and/or deoxycytidine Cytidine and/or deoxycytidine are produced at high yields by culturing cytidine deaminase activity-defective microbes of the genus Bacillus, which have... |
| US-4,839,284 |
Murine host-vector system capable of amplifying and expressing
transfected genes Disclosed herein is a method for amplifying and expressing transferred genes by temperature induction. |
| US-4,839,283 |
Method of expressing alpha-1-antitrypsin in yeast A method is provided for expressing human alpha-1-antitrypsin in yeast utilizing a wild-type strain and a hyperproduction mutant, GK100. |
| US-4,839,282 |
Preparation of 3-oxo-.DELTA..sup.1,4 -steroids A process for preparing a 3-oxo-.DELTA..sup.1,4 -steroid comprises fermenting the corresponding 3-oxo-.DELTA..sup.4 -steroid, saturated in the 1,2-position,... |
| US-4,839,281 |
Lactobacillus strains and methods of selection A biologically pure culture of a strain of bacteria of a Lactobacillus species in which the bacteria have avid adherence to intestinal cells, are able to survive... |
| US-4,839,280 |
Apparatus for applying stress to cell cultures A polyorganosiloxane composition having a biocompatible surface thereon is disclosed. The biocompatible surface results from the derivatization, or amination, of... |
| US-4,839,279 |
Method for the quantitative determination of physiological components in
biological fluids A novel enzyme of bilirubin oxidase and a conventional enzyme of laccase are found to oxidize bilirubin to biliverdin without formation of hydrogen peroxide,... |
| US-4,839,278 |
Integral multilayer analytical element for measurement of alkaline
phosphatase activity An integral multilayer analytical element for the measurement of alkaline phosphatase activity, which comprises a porous spreading layer containing a... |
| US-4,839,277 |
Method for purification of HBc antigen and method for measurement of HBc
antibody by using said purified HBc... A method for the purification of HBc antigen, particularly HBc antigen produced by recombinant organisms by means of DNA recombination technique, which comprises... |
| US-4,839,276 |
Interference - resistant liposome specific binding assay A method and reagent composition provide for the removal or blocking of serum interferences in liposome immunoassays. A carrier or liposome exhibiting at least... |
| US-4,839,275 |
Circulating antigens of dirofilaria immitis, monoclonal antibodies
specific therefor and methods of preparing... Novel hybrid cell lines are disclosed for providing monoclonal antibodies to circulating parasite antigens present in the blood of animals infected with the... |
| US-4,839,274 |
Novel polymethine dyes and UV absorbers containing a
triarylborylisocyano group and imaging compositions... Polymethine dyes and ultraviolet absorbers are disclosed containing a basic electron donating terminal nucleus and an acidic electron accepting terminal nucleus... |
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