In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
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| Number | Title | Issue Date |
| 8220316 | Method for determining an alcohol concentration of fuel fed to combustion in a motor vehicle after filling with a fuel of predetermined alcohol concentration In the method for determining the alcohol concentration of the tank fuel after filling up with E85 fuel or E0 fuel, two corridors of possible lambda values for filling with E0 fuel and E85 are established according to the volumes of the tank fuel before and after fi... | 07/17/2012 |
| 8127598 | Procedure for determining the proportions of components of a fuel mixture A procedure for determining the proportion of components of a fuel mixture, which is boosted with a fuel pump, and a device for implementing the procedure are suggested. A measure for the power input of the fuel pump is detected, with whose aid the proportion of com... | 03/06/2012 |
| 8065906 | Detection of free chlorine in water The present invention describes methods and kits for determining the concentration of free chlorine in water. To avoid false readings from other species present in the water, the free chlorine is reacted with ammonia to form monochloramine, which is then reacted to ... | 11/29/2011 |
| 7966864 | Method for ascertaining an ethanol content of a fuel Method for ascertaining an ethanol content of a fuel with the steps: ascertaining the vapor pressure of the fuel, ascertaining the temperature of the fuel and ascertaining the ethanol content of the fuel as a function of the vapor pressure and the temperature, which... | 06/28/2011 |
| 7775085 | High water cut well measurements with hydro-separation Methods and systems for determining the water, oil, and gas fractions in hydrocarbons from high water cut hydrocarbon wells. A hydrocarbon flow stream discharging from a well is subjected to hydro-separation to produce an oil-enriched fractional stream upon which wa... | 08/17/2010 |
| 7574899 | Fluid contaminant detection device A contaminant detector disposed within a base fluid for detecting the presence of a contaminating fluid includes a conductive core, a conductive sensor probe extending from the core in non-conductive relation, and a circuit board within the core. The circuit board i... | 08/18/2009 |
| 7562562 | Method and device for detecting a material A method and device is provided for detecting a predetermined material. The device includes a first inner layer having first and second surfaces and a volume responsive to a first predetermined stimuli. A second inner layer has first and second surfaces. An adhesive... | 07/21/2009 |
| 7454958 | Acoustic determination of properties of reservoirs and of fluids contained therein The invention provides devices and methods for acoustically determining the properties of the contents of one or more reservoirs in a plurality of reservoirs. Each reservoir is adapted to contain a fluid. An acoustic radiation generator can be positioned in acoustic... | 11/25/2008 |
| 7409849 | Oil filtration system for plural phase power equipment tanks Insulating oil in electric power generation, transmission and distribution equipment such as circuit breakers, regulators, phase shifters, tank diverter switches and capacitor banks for respectively separated phases of a plural phase transmission or distribution lin... | 08/12/2008 |
| 7407625 | Volume-differential water assay system using hydrophilic gel Systems and methods for measuring the moisture and sediment content of a petroleum sample. In one embodiment, a sample to be tested is collected in a field bottle. The sample from the field bottle is then transferred from the field bottle, and into and through a mea... | 08/05/2008 |
| 7394262 | Device for analyzing the composition of the contents of a container The present invention relates to a device for analyzing the composition of the contents of a receiver comprising: means (40) for emitting/receiving an electromagnetic field at a variable frequency over a determined frequency range, means (22) for suppo... | 07/01/2008 |
| 7363800 | Apparatus and method for measuring compositional parameters of a mixture An apparatus for measuring compositional parameters of solid, liquid, and gas components of a mixture flowing in a pipe is presented. The apparatus combines three different compositional measurements (e.g., the speed of light (microwave), the speed of sound (sonar),... | 04/29/2008 |
| 7354768 | Volume-differential assay using hydrophilic gel Systems and methods for measuring the moisture and sediment content of a petroleum sample. In one embodiment, a sample to be tested is collected in a field bottle. The sample from the field bottle is then transferred from the field bottle, and into and through a mea... | 04/08/2008 |
| 7328624 | Probe for measuring parameters of a flowing fluid and/or multiphase mixture A probe 10,170 is provided that measures the speed of sound and/or vortical disturbances propagating in a single phase fluid flow and/or multiphase mixture to determine parameters, such as mixture quality, particle size, vapor/mass ratio, liquid/vapor ratio, ... | 02/12/2008 |
| 7315767 | Impedance spectroscopy based systems and methods One aspect of the invention provides a device that non-invasively determines the concentration of a substance in a target. The device includes a first electrode, a measuring circuit, and a data processor. In one embodiment of the device, the first electrode can be e... | 01/01/2008 |
| 7305868 | Method and system for evaluating lyophobicity of inner wall of fine tube including lyophobic film A method for evaluating lyophobicity of an inner wall of a fine tube having a lyophobic film formed on the inner wall includes a step of setting up a fine tube having a lyophobic film extending from an end of the inner wall of the fine tube to a predetermined positi... | 12/11/2007 |
| 7302830 | Flow detectors having mechanical oscillators, and use thereof in flow characterization systems An improved system, device and method for characterizing a fluid sample that includes injecting a fluid sample into a mobile phase of a flow characterization system, and detecting a property of the fluid sample or of a component thereof with a flow detector comprisi... | 12/04/2007 |
| 7257991 | Sample testing device A sample testing device has a buffer container that can hold buffer fluid, a filter with a securement for holding a test strip, the test strip, a test strip container having a receptacle to accommodate the filter, so that when the filter is held therein the test str... | 08/21/2007 |
| 7170303 | Fuel sensor A sensor (20) includes a single capacitor (30) that operates in two different modes to obtain capacitance and conductance information when a mixture flows between the electrodes (32, 34) of the capacitor. Two different oscillators (180, 182 | 01/30/2007 |
| 7155962 | Method and apparatus to study a surfactant The invention relates to a method of and an apparatus for studying properties, especially physical properties of a surfactant. A fluid is introduced in the form of a sample volume in another fluid which is immiscible with said fluid so that an interface is formed be... | 01/02/2007 |
| 7150996 | Stability assessment of dispersions and emulsions A method and apparatus for determining the stability of dispersions and emulsions accelerates the onset of significant particle agglomeration in a sample by stressing the sample by reducing the height of the interparticle potential energy barrier between the particl... | 12/19/2006 |
| 7143638 | Wet gas measurement system A system and method for measuring an amount of constituent elements in a wet gas mixture, particularly of a wet gas containing petrol. As the wet gas is passed through a two stage measurement system, the total permittivity of the mixture and the amount of water in t... | 12/05/2006 |
| 7135870 | Device for determining the composition of a fluid mixture A method and apparatus are disclosed for determining the concentration of individual components within a fluid mixture by determining the permittivity of the individual components. The method and apparatus use a reference sensor and at least one measurement sensor p... | 11/14/2006 |
| 7116220 | Seat belt latch sensor assembly A mechanical engagement system such as a seat belt assembly includes a housing and a slider slidably received within the housing, the slider is configured for movement between a first position and a second position within the housing. A single magnet is associated w... | 10/03/2006 |
| 7107824 | Apparatus for the separation of cystic parasite forms from water A continuous flow centrifuge adapted with an insert of glass beads, sand or the like is used to concentrate cysts of microorganisms such as giardia or cryptosporidium from large volumes of water. The apparatus and methods are useful for the detection o... | 09/19/2006 |
| 7091869 | Optoacoustic measuring arrangement and use thereof The measuring arrangement contains a measuring cell and a reference cell, respectively, and microphones assigned to these cells, to which microphones an electronic evaluation circuit is connected and in which a subtraction of the signals of the microphones takes pla... | 08/15/2006 |
| 7036356 | Method and apparatus for defining water content of a liquid The invention relates to a method and apparatus for measurement of total water content in a liquid. According to the method, the relative water content (aw) of the liquid is measured in a first measurement step at a first temperature (T1). According to th... | 05/02/2006 |
| 7032444 | Module for extracting gas from an underground liquid and installation equipped therewith This invention concerns a module for extracting samples in gas phase of compounds present in an underground working liquid, the extractor module including a receptacle for the liquid, associated with a device for stirring the liquid, a liquid inlet duct, a liquid ev... | 04/25/2006 |
| 7017392 | System for monitoring dilution The system for monitoring dilution has a commodity being stored separately from a first fluid. The commodity has a predetermined distinguishing parameter (DP2) and the first fluid has a predetermined distinguishing parameter (DP1) being different from ... | 03/28/2006 |
| 7014005 | Seat belt latch sensor assembly A seat belt tension sensor assembly includes a housing and a slider slidably received within the housing, the slider is configured for movement between a first position and a second position within the housing. A first and second magnets is associated with the slide... | 03/21/2006 |
| 6976558 | Method and system for performing gearbox final assembly clean check A clean check is performed on a gearbox by flushing an oil-based fluid through the gearbox and then through a filter. The filter is then weighed to determine the weight of contaminants collected in the filter. The contaminant weight is compared to a predetermined le... | 12/20/2005 |
| 6975924 | Method and apparatus for controlling the strategy of compounding pharmaceutical admixtures A method and apparatus for controlling the compounding of pharmaceutical parenteral admixtures is disclosed. The apparatus preferably comprises a computer that contains a memory for storing instructions for operating the apparatus and for controlling compounders tha... | 12/13/2005 |
| 6885199 | Fuel sensor A fuel sensor (20) includes a single capacitor (22) that operates in two different modes to obtain capacitance and conductance information when a fuel mixture flows between the electrodes (24, 26) of the capacitor. Two different oscillators (... | 04/26/2005 |
| 6881381 | Apparatus for marking and identifying liquids A liquid can be marked for identification purposes with at least first and second miscible markers. The markers are mixed in the liquid so that the ratio of the concentration of the first marker to the concentration of the second marker is substantially equal to a p... | 04/19/2005 |
| 6842017 | Fuel cell mixture sensor A sensor (40) includes a single capacitor (42) that operates in two different modes to obtain capacitance and conductance information when a mixture flows between the electrodes (44, 46) of the capacitor. The inventive sensor is particularly wel... | 01/11/2005 |
| 6776029 | Oil content measuring device and refrigeration system using the same An oil content measuring device measures the oil content of a refrigerant in a supercritical or a vapor phase state. A refrigeration system uses the oil content measuring device. The oil content measuring device has an electrostatic capacity measuring device for mea... | 08/17/2004 |
| 6739178 | Sensor probe for measuring temperature and liquid volumetric fraction of a liquid droplet laden hot gas and method of using same A sensor probe and method of use for determining the temperature, velocity, and/or liquid volumetric fraction of gas laden with droplets. In one variation, the probe includes a single heating element used in a well-characterized flow. The heating element is maintain... | 05/25/2004 |
| 6737022 | Fragment collector apparatus A system for separating an aqueous stream of mixed polynucleotides into a series of length-based polynucleotide fractions and collecting one or more of the length-based polynucleotide fractions into separate containers. The system comprises a separation column conta... | 05/18/2004 |
| 6732568 | Sensor probe for measuring temperature and liquid volumetric fraction of a liquid droplet laden hot gas and method of using same A sensor probe and method of use for determining the temperature, velocity, and/or liquid volumetric fraction of gas laden with droplets. In one variation, the probe includes a single heating element used in a well-characterized flow. The heating element is maintain... | 05/11/2004 |
| 6703067 | Coating method with improved coating uniformity by choice of surfactant composition A method for measuring the dynamic surface tension (DST) of a proposed outer layer of a liquid composition, to be curtain or slide hopper coated, over a range of surfactant levels to determine the surfactant concentration which produces the maximum resist... | 03/09/2004 |