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"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 5310683 | Process for simultaneous measurement of sulfur and non-sulfur containing compounds A process and apparatus for the simultaneous measurement of sulfur-containing compounds and organic compounds with or without sulfur in their structures. A detector cell allows simultaneous measurement of compounds that can be ionized in a flame and there... | 05/10/1994 |
| 5271893 | Apparatus for steam sterilization of articles A process, system and pressure chamber for the automated sterilization of articles, particularly medical or dental instruments is disclosed, which is simple to use and economically efficient by comparison with conventional autoclaves and steam sterilizing... | 12/21/1993 |
| 5240861 | Device and process for concentrating biologic specimens in liquid form A device for concentrating liquid specimens and the process of using the device. The device has a receptacle containing a membrane. The sample to be concentrated is placed in the receptacle on the upper surface of the membrane. A piston is then screwed do... | 08/31/1993 |
| 5238652 | Analytical test devices for competition assay for drugs of non-protein antigens using immunochromatographic techniques An analytical test device for competition assay for particular non-protein antigens, such as antigens representing drugs of abuse, is disclosed. The analytical test device is a test kit housing having an opening for introduction of a body fluid sample and... | 08/24/1993 |
| 5227135 | Apparatus for simultaneous measurement of sulfur and non-sulfur containing compounds The present invention describes the process and apparatus for the simultaneous measurement of sulfur-containing compounds and organic compounds with or without sulfur in their structures. A detector cell is described that allows simultaneous measurement o... | 07/13/1993 |
| 5198193 | Liquid transfer devices A liquid transfer device of disposable one-time use form to conduct a biochemical diagnostic or other assay comprises two liquid flow channels (10,110,210; 20,120,220) leading from a respective pair of channel ends to a common site (30,130,230) and operab... | 03/30/1993 |
| 5196345 | Method for controlling the removal of acidic metal carbonyl hydride from product streams A method for determining the concentration of an acidic metal carbonyl hydride in an organic liquid by measuring the conductivity or pH of the liquid. The air addition to a continuous air demetallating unit may be controlled by feedback from the conductiv... | 03/23/1993 |
| 5192688 | Histological analysis method A method for the controlled histological analysis of brain tissue for the hallmarks of Alzheimer's Disease employing silver staining.... | 03/09/1993 |
| 5192690 | Process for the analytical determination of acetylcyanamide in urine The present invention is directed to a process for the analytical determination of acetylcyanamide in urine. It involves (a) the separating of acetylcyanamide at from a urine matrix and/or an extract which is obtained from a urine matrix by ion exchange c... | 03/09/1993 |
| 5192507 | Receptor-based biosensors A method of immobilizing and stabilizing an active biological receptor in a polymeric film and receptor-based biosensors for determining an analyte of interest in a sample. The receptor-based biosensors include a polymeric film having a biological recepto... | 03/09/1993 |
| 5188967 | Agents for the in vitro diagnosis of malignant cells originating in the digestive tract In vitro diagnosis of malignant cells originating in the digestive tract by placing a biological specimen in contact with a reagent recognizing the gene coding for human villin.... | 02/23/1993 |
| 5188802 | Dry analytical element for lithium assay A novel 14-crown 4-ether derivative is disclosed for use in a dry analytical element for assaying lithium.... | 02/23/1993 |
| 5186897 | Multianalyte test vehicle The vehicle comprises a sample receiving reservoir (15), a plurality of test stations each comprising an FCFD or other capillary fill sensor cell (3), and passage (22) for providing fluid communication between the reservoir and a conduit with which end po... | 02/16/1993 |
| 5183763 | Composition and method for detecting vapor and liquid reactants A paint or coating composition and method for detecting vapor or liquid reactants, such as ammonia. The composition is composed of ethyl cellulose as a binder, a filler, such as amorphous silica, and a dye, such as bromophenol blue. The composition serves... | 02/02/1993 |
| 5178828 | Apparatus for treatment of medical waste materials Medical waste material is sealed in a nonflammable and long infrared radiation pervious film bag. The bag is subjected to long infrared radiation by an apparatus for a sufficient period of time at sterilizing temperature levels. Any smoke and odor generat... | 01/12/1993 |
| 5173431 | Copper oxidation protein assay A procedure for detecting proteins in fluids (particularly body fluids) which involves contacting such fluid with a composition comprising copper in a form capable of forming a copper/protein complex, a peroxide and a redox indicator which provides a dete... | 12/22/1992 |
| 5173433 | Method for chemical analysis A chemical analysis test device for detection of a selected chemical in a biological fluid is disclosed wherein the test is preformed on a rigid base containing a detection well for holding a reagent and a specimen well for holding a sample of the biologi... | 12/22/1992 |
| 5171695 | Determination of analyte concentration using two labelling markers In order to measure the concentration of an analyte in a liquid sample the sample is contacted with a receptor molecule having binding sites for the analyte and labelled with a first marker, whereby a fraction of the binding sites on the receptor molecule... | 12/15/1992 |
| 5171694 | Method for monitoring aqueous carbon dioxide An apparatus and method for the measurement of low levels of carbon dioxide in a sample employing membrane separation and ion-exchange technology. The difference in acid strength of carbonic acid and other acids is exploited by first treating the sample w... | 12/15/1992 |
| 5171525 | Process and apparatus for dry sterilization of medical devices and materials A process for dry sterilization of medical or dental devices and materials in which these materials are subjected to an electrical discharge in a gaseous atmosphere to produce an active low temperature plasma for surface sterilization and treatment of the... | 12/15/1992 |
| 5171535 | Breath alcohol tester A disposable breath alcohol tester is disclosed which includes a transparent housing defining an interior chamber. A tube extends through the housing chamber so that one end of the tube is open to one side of the chamber while the second end of the tube i... | 12/15/1992 |
| 5166073 | Miniaturized sensor for ionizing radiation The invention is an optical sensor useful for the detection of ionizing radiation emitted from an analyte in a fluid. The sensor is composed of a permeable scintillator having a high surface area to scintillator volume ratio and an optical waveguide locat... | 11/24/1992 |
| 5162232 | Method for determining the time period since death of a human cadaver A method for determining the time period since the death of a human cadaver deposited on soil by the steps of removing a sample of soil from beneath the cadaver, testing the sample for a concentration of a chemical which is indicative of the time since th... | 11/10/1992 |
| 5152962 | Immunoassay apparatus An assay apparatus employing total internal reflection of excitation radiation at the interface between a replaceable optically conductive assay device and a surrounding liquid phase containing the substance being assayed. The assay device is formed of a ... | 10/06/1992 |
| 5147806 | Method and apparatus for conducting electrochemiluminescence measurements A method and apparatus for conducting electrochemiluminescence (ECL) measurements which control the initial conditions relating to the surface state of a triggering working electrode by reproducibly creating and maintaining a favorable surface condition s... | 09/15/1992 |
| 5141717 | Carbon monitor containing anion exchange resin Apparatus for measuring the concentration of carbon compounds in water, the apparatus including a reaction zone for converting such carbon compounds to free and/or combined carbonaceous acids, a device for introducing at least a portion of the water to be... | 08/25/1992 |
| 5137689 | Method and apparatus for cleaning instruments Pressurized liquid is forced through the instrument simultaneous with submerging in a container of disinfectant or sterilization solution and also a gas may be introduced. The containers of the solutions receive the instrument which is mounted to be drive... | 08/11/1992 |
| 5135714 | Process for sterilizing a web of packaging material A process is provided for sterlizing a web of packaging materials which is to be formed into containers for aseptic packaging. The process comprises contacting the web with aqueous solution of ozone and hydrogen peroxide and subsequently irradiating the s... | 08/04/1992 |
| 5132093 | Synergistic corrosion inhibitors based on substituted pyridinium compounds The present invention relates to a compound of the formula: ##STR1## wherein (a) A is independently selected from --SR1, --NR1 R2, --PR1 R2, --Si,R1 R2 R3, or --SnR | 07/21/1992 |
| 5130256 | Diagnostic assay for breast cancer in human female patients A method for determining whether a woman with gross cystic disease will develop breast cancer is provided. The method comprises analyzing human breast cyst fluid for the presence of a unique factor which has a retention time on an Amino Carbohydrate HPLC ... | 07/14/1992 |
| 5129922 | Method and apparatus for removing contaminated air from an enclosed dirty air space Contaminated air is drawn from a relatively enclosed dirty air space and filtered to remove both contaminants and other particulate materials. A main mechanical filter is positioned between the dirty air space and a surrounding environment which is to be ... | 07/14/1992 |
| 5128171 | Method of making a test strip having a dialyzed polymer layer A test strip for the detection of a predetermined substance in a fluid is described. This test strip is stable to storage and accelerated keeping test conditions and comprises a support having thereof a reagent layer wherein the reagent layer contains a d... | 07/07/1992 |
| 5128106 | Lamp with an oxygen detector An oxygen detector for use in a double envelope lamp is described. The detector may be formed by nitriding a metal surface to produce a metal piece with a first visual color or state. The surface thickness is sufficient to exclude oxygen during normal ass... | 07/07/1992 |
| 5126109 | Preserving material and method for producing the same A preserving material of a layered structure which is composed of an impregnated absorbent sheet containing a preserving liquid and impermeable barrier films being bonded to both surfaces of the adsorbent sheet. The effective components of the preserving ... | 06/30/1992 |
| 5124129 | Carbon dioxide indicator A carbon dioxide indicator for use in determining the proper placement of endotracheal tubes. The indicator is comprised of a pH-sensitive dye suspended in a predominantly hydrophilic polymer matrix. The indicator may be placed inside a tube or connector ... | 06/23/1992 |
| 5120499 | Method and system for asepticizing contact lenses and storing device Light-transmitting contact lenses of Polymethylacrylate, Gas Permeable of Hydrogel materials may be immersed in an aqueous liquid medium contained in a storing and processing device, all of which are substantially transparent to the ultraviolet radiation ... | 06/09/1992 |
| 5114670 | Process for sterilizing surfaces A process is disclosed for sterilizing surfaces utilizing hydrogen peroxide gas in combination with preselected ultraviolet energy.... | 05/19/1992 |
| 5112646 | Apparatus for bioluminescence measurement An apparatus for bioluminescence measurement, which measures a substance in vivo on the basis of bioluminescence, is provided with a device for supplying a reagent or buffer solution kept at a constant temperature in a thermostat tank to a container for c... | 05/12/1992 |
| 5112580 | Reactor for the production of chlorine Chlorine is produced by reacting hydrogen chloride and oxygen in the presence of a chromium oxide catalyst in a reactor whose catalyst-contacting part is lined with one of lining materials represented by the following general formula (I): Ma X | 05/12/1992 |
| 5108930 | Aminoguanidine assay and applications thereof A method and associated materials including test kits for detecting and measuring the presence and amount of aminoguanidine and its analogs in biological samples is disclosed. Biological samples may include plasma, urine or tissue, and the present method ... | 04/28/1992 |
