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| Number | Title | Issue Date |
| 4236211 | Method and apparatus for determining the minimum concentration of antibiotic necessary to at least inhibit microorganism growth A fixed functional relationship in either tabular or equation form is established between the growth of various microorganisms in the presence of a few (e.g., one or two) predetermined concentrations of a predetermined antibiotic and the minimum concentra... | 11/25/1980 |
| 4235687 | Measuring cell for micro-assays, comprising membrane electrodes The measuring cell is composed of at least one cavity hollowed in a block of chemically inert material or material made chemically inert at least at the surface. The cavity defines a first cylindrical space whose bottom is, over a reduced part of its diam... | 11/25/1980 |
| 4220715 | Apparatus for and method of detection of significant bacteriuria in urine samples through measurement of head space gas oxygen consumption in a closed-vial system The detection of "significant bacteriuria" in a urine sample is accomplished by measuring the head space gas oxygen consumption in a closed vial system. A sample to be tested is introduced into a sealed vial containing a growth medium and the head space g... | 09/02/1980 |
| 4213825 | Apparatus for testing reactions A biologically active substance is incorporated in a unitary body with a magnetically responsive material for carrying out diffusion testing. These may be, microbiological, immunological, serological and other biochemical examinations. The body is applied... | 07/22/1980 |
| 4209586 | Method of testing the effectiveness of a growth inhibiting agent on a microorganism The changes in the redox potentials of cultures of a microorganism with and without a tested growth inhibiting agent are monitored during the phase of growth in which the redox potential is normally positive and the rate of potential change is approximate... | 06/24/1980 |
| 4204037 | Method and automated apparatus for detecting coliform organisms Method and automated apparatus are disclosed for determining the time of detection of metabolically produced hydrogen by coliform bacteria cultured in an electroanalytical cell from the time the cell is inoculated with the bacteria. The detection time dat... | 05/20/1980 |
| 4172770 | Flow-through electrochemical system analytical method An electrochemical system using a flow-through electrode design employing a dual separation method to lower electrode poisoning due to large chemical species and interference current due to small electroactive species is disclosed. The system includes a f... | 10/30/1979 |
| 4170520 | Apparatus for measuring reactant concentrations and quantities A method and apparatus is provided for determining the concentration or quantity of enzyme molecules, microorganisms or substrate molecules by monitoring directly the concentration and/or the quantity of vaporous by-product produced from the selective rea... | 10/09/1979 |
| 4160205 | Detection of bacterial activity Bacterial activity is detected by inoculating the bacteria into a suitable nutrient medium and monitoring the resistive component of the electrical impedance of this culture in such a manner that the value obtained is influenced by the temperature coeffic... | 07/03/1979 |
| 4156180 | Apparatus and method for detecting metabolic activity An apparatus and method for detecting metabolic activity in a medium which includes an electrical circuit suitable for passing electrical current through a medium which contains a suspected metabolic agent. The circuit includes means for generating a refe... | 05/22/1979 |
| 4152215 | Apparatus for controlling pH of culture solution for a living organism Electrolysis is employed for raising or reducing pH of culture solution. Electrolyte contained in a vessel having at least one ion exchange membrane as a wall is provided so as to confront the culture solution, with the ion exchange membrane lying therebe... | 05/01/1979 |
| 4149938 | Electrochemical detection device An electrochemical detection device for detecting micro-organisms. A standard pH reference electrode and a platinum cathodic electrode are positioned in a container with suitable nutrient medium for microbial growth plus the sample to be tested. The two e... | 04/17/1979 |
| 4128456 | Suction electrode for intracellular potential measurement An electrical sensing and stimulation electrode small enough to record intracellular activity within a single living cell. The electrode incorporates a cylindrical chamber with a finely tapered end section. The chamber is evacuated to hold the cell at its... | 12/05/1978 |
| 4124449 | Method and apparatus for bacterial microscopy The present invention provides a method and apparatus for microscopic examination of samples containing bacteria in low numbers and which require precise staining procedures for visualization and counting. A slide has a filter assembly through which the b... | 11/07/1978 |
| 4116778 | Plant for continuous cultivation of microorganisms Disclosure is made of a plant for continuous cultivation of microorganisms. The plant comprises a closed recirculation circuit made up by a fermenter, a pump and a process parameter measuring unit connected in series by means of an annular duct. The plant also... | 09/26/1978 |
| 4116631 | Method for microbiological analysis of liquid mediums A method of transporting liquid samples of bacteria cultures for microbiological analysis in an automatic analysis apparatus. The culture samples are transported in a liquid stream in a conduit as samples separated by intermediate segments of a decontamin... | 09/26/1978 |
| 4104031 | Apparatus for displaying the results obtained on an agglutination support Apparatus for projecting, in conventional indication form, i.e. A, B, AB or O followed by the sign + or -, the results which enable an individual's blood group and rhesus factor to be determined and which are obtained with mixtures of blood taken from the... | 08/01/1978 |
| 4073691 | Method for detecting the presence of biologically active agents A sample of material to be tested for the presence of biologically active agents, such as bacteria, is introduced into a sealable container partially filled with a culture medium; the remainder of the container being filled with a culture gas, the contain... | 02/14/1978 |
| 4072578 | Multi-chambered module for use in monitoring growth of microorganisms A multi-chambered module for holding separate samples of nutrient media. A plurality of chambers, with access means into each, is permanently attached to an electrically non-conductive base. Embedded within the base under the chambers is a plurality of el... | 02/07/1978 |
| 4055470 | Device for examining biological specimens A device for reading and recording the sensitivity of a series of specimens wherein a test plate is inoculated with a series of specimen organisms at predetermined spaced sites thereon, incubated, and the clone at each site examined to determine whether t... | 10/25/1977 |
| 4040908 | Polarographic analysis of cholesterol and other macromolecular substances A micro-method for measurement of sterols such as cholesterol, and other macromolecular substances, is disclosed utilizing enzymes for the conversion of such substances to produce ultimately hydrogen peroxide and measurement of the generated hydrogen pero... | 08/09/1977 |
| 4039247 | Device for use in testing of fluid samples on microscope slides A device for use in a test procedure in which a plurality of discrete fluid samples is disposed on a microscope slide which comprises a slide support and clamping means for clamping a slide between a gasket provided with a plurality of apertures therethro... | 08/02/1977 |
| 4024042 | Enzyme electrode The invention relates to an enzyme electrode which can be sterilized and regenerated and which has a sensitive surface and an enzyme in contact therewith. A semipermeable membrane is arranged at a distance from the sensitive surface of the detecting elect... | 05/17/1977 |
| 4014747 | Cartridge for a bacteria screening device for continuously monitoring and recording the existence of air borne bacteria and other microorganisms A cartridge for a bacteria screening device for detecting and recording the existence of bacteria and other microorganisms in a gaseous medium, such as a hospital operating room atmosphere, arranged to continuously or intermittently expose active culture ... | 03/29/1977 |
| 3988209 | Microorganism analysis device A device useful in medical laboratories for receiving urine and performing analyses thereof is described. In a preferred embodiment urine flows into portions on either side of a unitary housing. The two side portions are interconnected by an overflow rese... | 10/26/1976 |
| 3958938 | Bioluminescent sensor system In a bioluminescent sensor system there is provided a fluid path for passing vapors across a bioluminescent microorganism sensor to momentarily test for a specific vapor and a recirculating fluid path for otherwise passing humidified air across the sensor... | 05/25/1976 |
| 3953296 | Enzyme recovery by ultrafiltration in enzymatic analysis A method and device for producing low-molecular products, especially for determining the concentration of low-molecular biological substances, by means of enzyme reaction, characterized by the fact that, after the reaction is complete, the used enzyme is ... | 04/27/1976 |
| 3948731 | Method and apparatus for measuring reactant concentrations and quantities A method and apparatus is provided for determining the concentration or quantity of substrate molecules by monitoring directly the concentration and/or the quantity of vaporous byproduct produced from the selective reaction of the molecule catalyzed with ... | 04/06/1976 |
| 3937615 | Auto-ranging glucose measuring system An auto-ranging glucose measuring system including a device capable of mixing a glucose containing solution and a diluent in a variable ratio, a glucose oxidase enzyme converter column for converting the diluted glucose solution to hydrogen peroxide as on... | 02/10/1976 |
