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5045474 Semi-automatic process for white cell differential count  
Hemotological analyses for hemoglobin and for three part white cell differential count. The dilution step is performed off line from the precisely controlled lysing and cell size measurement steps,...
5041372 Probe to identify enteroinvasive E. coli and Shigella species  
The invention provides a method for preparation of probes for use in detecting enteroinvasive Escherichia coli and Shigella species. The small probes provide reliable and inexpensive means for...
5034315 Oligonucleotide probes complementary to and methods for distinguishing Treponema hyodysenteriae RNA sequences  
Single-stranded oligonucleotide probes complementary to a signature region of Treponema hyodysenteriae (T. hyo) 16S rRNA are useful in distinguishing this pathogenic species of Treponema from...
5030417 Method and kit to assay for steroid receptor functionality in cancerous cells  
A method and a test kit for rapidly determining the presence of functional cellular steroid receptors by assaying a tissue sample for nuclear steroid or antisteroid binding is disclosed which...
5030562 Method for screening bacteria and application thereof for field control of the weed downy brome  
A method for screening bacteria to select strains which inhibit the weed downy brome in small grain crops under field conditions and method for field application of the bacteria to inhibit downy...
5024845 Method of reducing L-malic acid in juice medium  
A mutant strain of Schizosaccharomyces #442 (ATCC46954) requiring both glucose and L-malic acid for growth has been produced which is capable of completely utilizing L-malic acid without...
5006463 Immunoassays for discriminating between brucellosis infections and vaccinations  
A method is disclosed for discriminating between cattle vaccinated against and those infected with Brucella spp. The method involves immunoassay using a purified polysaccharide containing...
5006471 Fungal resistance markers  
A drug resistant strain of P.chrysogenum has said drug resistance conferred by heterologous DNA, in particular a heterologous gene(s) under the control of a Penicillium control sequence(s). Drug...
5004699 Method to detect fungi and yeasts  
A method for detecting organisms such as fungi and yeast in a sample attached to a solid phase, by detecting the presence of chitin in using lectin or anti-chitin antibodies.
5002869 Monoclonal antibody specific to a novel epitope of the LFA-1 antigen of human T lymphocytes  
A monoclonal antibody which binds preferentially to a subset of the human CD8 lymphocyte population whereby to positively and precisely distinguish between cytotoxic effector and supressor effector...
4999286 Sulfate reducing bacteria determination and control  
Sulfate reducing bacteria are detected by preparing a lysate so as to release an enzyme essential to derive energy by reduction of sulfate such as adenosine 5'-phosphosulfate reductase (APS...
4994376 Detection of bacteroides gingivalis  
The present invention relates to the detection of B. gingivalis by the specific ability of B. gingivalis to hydrolyze N-carbobenzoxy-glycyl-glycyl-L-arginine-B-napthylamide derivatives. The present...
4994378 Method for reducing blood carbon dioxide background in bacterial media by the addition of micelles of saponin and a phospholipid  
A non-ionic lytic agent, preferably saponin for reducing the background carbon dioxide produced by blood cell metabolism is used in the testing of cultures for the presence of microorganisms. The...
4992365 Method of detecting bacteria in urine  
New and substantially improved methods for the detection of bacteria, bacterial fragments and/or bacterial antigens are described. Novel methods for treatment of rheumatoid arthritis, "essential"...
4992377 Article for carrying out biological or chemical procedures containing magnetically responsive material  
A biologically or chemically active substance is incorporated in a unitary body with a magnetically responsive material for carrying out a specific biological or chemical procedure. This may be...
4985353 Method for the diagnosis of whooping-cough and a test kit for carrying the method into effect  
A method for the diagnosis of whooping-cough is described. The method is carried out such that a sample of body fluid from a patient is incubated with at least a part of a pertussis...
4983511 Method and kit for detecting live microorganisms in chlorine- or bromine-treated water  
Water monitoring systems, and more specifically, to a method and kit for detecting the presence of only living undesirable or indicator microorganisms in water after treatment of the water with...
4983516 Bioelectrochemical measurement of microbial activity using a working electrode of carbon-bearing porous material  
Microbial activity in an aqueous medium is measured in a bioelectrochemical cell in which the working electrode comprises an electrically conductive carbon-bearing porous material; suitably a...
4976951 Dental caries diagnostic and localization technique  
A method for detecting and localizing bacterial growth on a surface comprising the steps of: (a) applying a solid substrate to the surface; (b) removing said substrate from said surface and...
4971900 Method for the detection of biologically active agents  
An apparatus and method for the detection of the growth of microorganisms through infrared analysis of a sample of the gas produced by growth of the microorganism is descirbed. In the method, a...
4968602 Solution-phase single hybridization assay for detecting polynucleotide sequences  
A process for determining the presence of a particular nucleic acid sequence in a test sample comprising (a) chemically modifying nucleic acids in the test sample either to introduce a label or...
4962036 Microorganism determination with a sorbent packed column  
Determination of microorganisms in body fluids for diagnosis is carried out by passing a body fluid through a column packed with a sorbent which traps microorganisms contained by the body fluid. A...
H000831 Tubular biofilm reactor  
A tubular connected series of biofilm samplers is provided for monitoring biofouling by microorganisms in a continuous flow stream. Tubular bypasses are provided around each sampler, so that each...
4952497 Simple and rapid method for detection of virulent Yersinia enterocolitica  
A crystal-violet dye binding technique useful for the detection and differentiation of virulent plasmid-bearing strains of Yersinia enterocolitica. Virulent plasmid-bearing strains of the bacteria...
4952498 Method and apparatus for detecting microorganism activity  
Gas-generating activity of microorganisms is detected by providing a vessel in which the microorganisms are incubated, the vessel having a cap with a membrane indicator therein. The membrane has a...
4943521 Method for evaluating mutagenicity  
A method for rapidly and reliably determining the potential carcinogenic activity of hydrocarbon mixtures which is especially useful for those of petroleum origin. A sample of the mixture is...
4939081 Cell-separation  
A method and apparatus for separating particles by means of a contra-flow centrifuge, wherein a monitor system is used to analyze or control the separation process. The monitor system used impinges...
4937970 In vitro screening for and selection of glycine max resistant to phialophora gregata  
An in vitro method for screening Glycine max cells for resistance to a disease caused by Phialophora gregata, brown stem rot, is disclosed. The method is useful for identifying brown stem rot...
4937187 Methods for separating malignant cells from clinical specimens  
Fragments of a biopsy sample on the order of about 50 to 5000 cells are preferred for establishing viable tumor cell cultures for purposes such as establishing cell lines, chemotherapeutic assays...
4937189 Expression and secretion of heterologous proteins by Yarrowia lipolytica transformants  
Sequencing of the XPR2 and LEU2 genes of Yarrowia lipolytica, recombinant Yarrowia lipolytica cloning vehicles comprising heterologous DNA coding for the expression of mammalian protein and other...
4933274 Process for detecting genetic susceptibility to cancer  
A process for determining genetic susceptibility to cancer is disclosed in which the frequency of chromatid breaks and gaps is calculated in metaphase skin fibroblasts or stimulated peripheral...
4925789 Method and medium for use in detecting target microbes in situ in a specimen sample of a possibly contaminated material  
The presence or absence of a predetermined target microbe in a sample is determined by adding a testing medium to the sample, or vice versa. The testing medium provides a selective growth medium...
4923804 Escherichia coli (e.coli) test method  
The present invention provides a method which is specific to determining and is capable of enumerating Escherichia coli (E. coli) in a sample water or sewage specimen. The method comprises adding...
4923801 Compositions and methods for the enrichment and isolation of Campylobacter pylori and related organisms from biological specimens and the environment  
A method of enrichment and isolation of urease producing organisms from a contaminated specimen by first homogenizing the contaminated specimen in water, then introducing the homogenized...
4920063 Process for detection of selected motile organisms  
Methods and associated devices for detecting the presence of a particular motile organism within a sample are disclosed. The sample may be derived from dry milk, raw meat, poultry or a clinical...
4918004 Method of calibrating a flow cytometer or fluorescence microscope for quantitating binding antibodies on a selected sample, and microbead calibration kit therefor  
A method for calibrating a flow cytometer or fluorescence microscope in terms of number of binding antibodies as a function of fluorescence intensity value measured on the flow cytometer or...
4918005 Method of quantitative assay for vitamin B.sub.12 and reagent for assaying vitamin B.sub.12  
The present invention is directed to a method of quantitative assay for a vitamin B 12 -containing substance which comprises culturing marine methanol-utilizing bacteria having B 12 auxotrophy in...
4916061 Gram staining method and kit  
The present invention provides Gram staining methods and kits in which conventional aqueous iodine-iodide solutions and separate decolorizer solutions are replaced by storage stable alcoholic...
4914025 Export of intra-cellular substances  
An export sequence of export DNA can be identified by transforming a population of cells with a vector having a transposon that includes a structural gene encoding a detectable compound, positioned...
4914030 Carbomycin resistance-conferring gene, designated carb, for use in streptomyces and other organisms  
The carB gene is a novel carbomycin resistance-conferring gene isolated from Streptomyces thermotolerans and used to construct a number of cloning vectors for use in Streptomyces and related...
4912037 Container for micro-organism culture media  
A container for one or more micro-organism culture mediums has a substantially cylindrical or frustoconical casing open at both ends. A transverse perforated support grid is joined to an inside...
4912036 Rapid differentiation of bacteria using cyclic polypeptide antibiotics  
Rapid differentiation between viable gram-positive and gram-negative bacteria is accomplished with certain polypeptide antibiotics which are used in combination with a compound which is normally...
4912035 Method for minimizing interference by reductants when detecting cells in biological fluids  
A method for the determination of cells in a sample is disclosed. The sample is typically urine and the method is useful in removing interfering reductants from the sample. The method comprises the...
4910152 Method for binding opioid receptors  
A method of controlling weight in a mammal and diagnosing, treating, and preventing disorders associated with delta-type opioid receptors comprising administering to the mammal a receptor probe or...
4910132 Virus-free in vitro assay for anti-HIV agents  
A virus-free assay to identify agents that interfere with the life cycle of HIV which comprises: (1) expressing in mammalian cells in the presence or absence of one or more of said agents, HIV...
4908308 Method for detecting animal-infective protozoa in vitro and a method for detecting agents which block the differentiation thereof  
This invention concerns a method for identifying in vitro an animal-infective form of a parasitic protozoan which comprises recovering total mRNA from the protozoan and detecting in the mRNA so...
4906565 Method for the selective detection of microbial nucleotides  
A method for the selective determination of microbial cells, in a sample suspected of containing both microbial and non-microbial cells, is described which involves the selective release and...
4906573 Culture medium for detection of beer spoilage microorganisms  
Beer spoilage microorganisms are detected with a culture medium that is advantageous for detecting Lactobacillus spp., Pediococcus spp. and wild yeast, and which allows detection to be carried out...
4906566 Method and apparatus for producing analytic culture  
A testing device allows field tests to determine the presence of microorganisms in a given fluid. A container may have a culture medium in dry form, and a floatable device in the container. When a...
4898816 Mediators for bioelectrochemical cells to test for microbiological activity  
1,4-Benzoquinone can act as a mediator of electron transfer in bioelectrochemical cells for measuring microbiological activity in a sample. In combination with ferricyanide it can provide a...