Did You Know...
...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
PatentStorm News
Make the Most of PatentStorm
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest patents by subscribing to an RSS feed.
Got questions? Ask a Patent Expert!
Registered users: Manage your profile, comments and alerts.
| Number | Title | Issue Date |
| 7421882 | Breath-based sensors for non-invasive molecular detection A method of diagnosing the health of an individual by collecting a breath sample from the individual and measuring the amount of each of a plurality of analytes in the sample. The amount of each analytes is measured by fitting a time response curve of a sample-evalu... | 09/09/2008 |
| 7413892 | Systems and methods for molecular recognition Acoustic wave devices coated with a biolayer are described for the detection target bio-molecules. The acoustic wave device is connected in an oscillator circuit, and the frequency shift Δf resulting from a biomolecular event is recorded. Further described are the ... | 08/19/2008 |
| 7329390 | Device and process for measuring breath alcohol A breath alcohol measuring device includes a flow chamber, for receiving exhaled breathing gas of a person, with a flow diaphragm. A differential pressure sensor has a first measuring connection via a first gas line (5) to the interior space of the flow chamb... | 02/12/2008 |
| 7218236 | Vehicle ignition interlock systems that detect the presence of alcohol within vehicles A vehicle ignition interlock system includes a breath analyzer and a controller operably connected to the breath analyzer and to an ignition system of the vehicle. The breath analyzer detects the breath alcohol level of a vehicle operator and is configured to preven... | 05/15/2007 |
| 7049149 | Biological marker for stress states The object of the invention is to propose a novel biomarker for stress states, which biomarker is highly meaningful and capable of enabling quantitative measurements to be made of stress levels. To do this, it has been found, surprisingly, that the air at the end of... | 05/23/2006 |
| 6974706 | Application of biosensors for diagnosis and treatment of disease A method for detecting compounds of interest in bodily fluids, including exhaled breath and blood. The present invention uses biosensors that mimic naturally occurring cellular mechanisms, including RNA oligonucleotide chains or “aptamers,” in combination with m... | 12/13/2005 |
| 6923079 | Recording, transmission and/or playback of data representing an airflow Data representing one or more characteristics of an input airflow (e.g., an airflow associated with a human being, such as breath or an airflow resulting from motion of the human being, or a wind tunnel airflow) is acquired and, if necessary or desirable, processed,... | 08/02/2005 |
| 6792793 | Breath measurement instrument and breath alcohol interlock device incorporating same A breath measurement instrument using a combination of breath pressure, temperature, and humidity measurements to determine whether or not breath samples are human and properly delivered. Valid samples require maintenance of a threshold dynamic pressure of a sample ... | 09/21/2004 |
| RE38575 | Diagnostic method for diabetes using C-13 labeled pyruvic acid The present invention relates to a diagnostic agent for diabetes, which comprises glucose labelled with 13C at a specific position, or pyruvic acid labelled with 13C at least one specific position. According to the present invention, there is p... | 08/31/2004 |
| 6464941 | Breath alcohol measuring apparatus having a sample intake channel and a temperature sensor mounted therein A breath alcohol measuring apparatus includes a sample intake channel (7) for receiving the respiratory gas sample and a temperature sensor mounted in the sample intake channel (7). The breath alcohol measuring apparatus is so improved that the influence ... | 10/15/2002 |
| 6319724 | Trace level detection of analytes using artificial olfactometry The present invention provides methods for detecting the presence of an analyte indicative of various medical conditions, including halitosis, periodontal disease and other diseases are also disclosed.... | 11/20/2001 |
| 6265221 | Device for trapping and assaying C14 labelled carbon dioxide and method of use A device for use in trapping and assaying 14 CO2 in air exhaled by a person to which a 14 CO labelled compound has been administered, in particular 14 CO labelled urea, comprises first and second substantially f... | 07/24/2001 |
| 6254547 | Breath methylated alkane contour: a new marker of oxidative stress and disease The alkane profile, comprising the alveolar gradients of n-alkanes in breath having 2 to 20 carbons, and the alveolar gradients of methylated C3-C20 alkanes, is determined for the diagnosis of disease in mammals, including humans.... | 07/03/2001 |
| 6214317 | Diagnostic method for diabetes using C-13 labeled pyruvic acid The present invention relates to a diagnostic agent for diabetes, which comprises glucose labelled with 13 C at a specific position, or pyruvic acid labelled with 13 C at least one specific position. According to the present inventio... | 04/10/2001 |
| 6205840 | Time clock breathalyzer combination A combined time clock breathalyzer is provided including a clock for tracking a current time, an inlet port, an alcohol sensor connected to the inlet port for determining an amount of alcohol in an air flow, and a printer. Also included is a controller ad... | 03/27/2001 |
| 6180414 | Breath test for detection of drug metabolism A breath test for determining the rate of metabolism of a drug is described. First, a safe and effective amount of the drug, preferably appropriately labelled and most preferably isotopically-labelled, is administered to a subject. After a suitable time p... | 01/30/2001 |
| 6177051 | Dispensable alcohol breath analyzer system A dispensable alcohol breath analyzer system including a rectilinear box with an analyzer on one face and an extendable tube on another face. The system also includes a plurality of units located within the box to be dispensed, each unit containing an ana... | 01/23/2001 |
| 6174730 | Reagent for evaluating a hepatic operation The present invention relates to a reagent for evaluating a hepatic operation, comprising an aromatic amino acid, methionine, alanine, fructose or galactose labelled with 13 C at least at one position. According to the present invention, there ... | 01/16/2001 |
| 6167746 | Apparatus and method for determining a person's sobriety An apparatus and method for determining the concentration of alcohol present in a gaseous mixture wherein an electronic device employing a fuel cell determines the concentration of alcohol present in the gaseous mixture is disclosed. In particular, the de... | 01/02/2001 |
| 6150177 | Device and process for determining the temperature of the gas sample flow during breath alcohol measurements A device comprising a combination of a mouthpiece (2) with a holder (1), which receives the mouthpiece (2) and has a sampling channel (4) leading to a breath alcohol-measuring device and a temperature sensor (11) arranged in the connection area between th... | 11/21/2000 |
| 6110122 | Breath test for assessing hepatic function Provided herein is a novel breath test for assessing hepatic function. The test involves administration of a labeled methionine or methionine metabolite to a subject and measurement of the expired label.... | 08/29/2000 |
| 6096558 | Process for calibrating a breath alcohol-measuring instrument A process for calibrating a breath alcohol-measuring instrument (7) with a calibrating gas generator (1) with a liquid container (2) for aqueous ethanol solution and air feed device, which allow air to bubble through the ethanol solution and for passing g... | 08/01/2000 |
| 6083756 | Prevention of sudden infant death A method for identification of an infant being particularly susceptible to sudden infant death syndrome (SIDS) comprises the determination of an Helicobacter pylori infection in the infant's mother, particularly by detection of antibodies to H. pylori of ... | 07/04/2000 |
| 6026674 | Apparatus and method for determining a person's sobriety An apparatus and method for determining the concentration of alcohol present in a gaseous mixture wherein an electronic device employing a fuel cell determines the concentration of alcohol present in the gaseous mixture is disclosed. In particular, the de... | 02/22/2000 |
| 5962335 | Breath test for detection of drug metabolism A breath test for determining the rate of metabolism of a drug is described. First, a safe and effective amount of the drug, preferably appropriately labelled and most preferably isotopically-labelled, is administered to a subject. After a suitable time p... | 10/05/1999 |
| 5961470 | Breath test for assessing hepatic function Provided herein is a novel breath test for assessing hepatic function. The test involves administration of a labeled methionine or methionine metabolite to a subject and measurement of the expired label.... | 10/05/1999 |
| 5929319 | Breath testing apparatus This invention consists of breath testing apparatus 10 comprising a breath tube 11, a fuel cell housing 12 incorporating a pump system 12a, a fuel cell 13, a control and computational unit 14, and a display 15. A thermistor 22 is provided to detect the te... | 07/27/1999 |
| 5854000 | Methods for measurement predicated on the presence of advanced glycosylation endproducts in tobacco and its combustion byproducts Methods are disclosed for measuring the accumulation of advanced glycosylation endproducts (AGEs), which are predicated on the discovery that such AGEs are present in tobacco and its byproducts. More particularly, the methods focus on the observation that... | 12/29/1998 |
| 5783449 | Method for quantifying alcohol catabolism The method for quantifying Alcohol Breakdown Activity (ABA) in humans in vivo is developed to determine an efficiency of alcohol catabolism for any given individual. Unlike other related methods, Index-K uses a biological regularity of ABA and employs a t... | 07/21/1998 |
| 5770793 | Method for determining the concentration of a substance in a gas The invention is directed to a measuring method for determining the concentration of a gas in a measurement sample with the aid of a combined measuring apparatus. The measuring apparatus includes a first infrared optical gas analyzer 1 as well as a second... | 06/23/1998 |
| 5721142 | Method for monitoring mammalian reproductive cycles A method for monitoring mammalian reproductive cycles by monitoring variations in the quantity of one or more low molecular weight volatile compound having a molecular weight of less than 50 grams per mole present in a body constituent sample is disclosed... | 02/24/1998 |
| 5552324 | Method and apparatus for determining the concentration of readily oxidizable organic vapors in gas samples A reagent, an apparatus and a method for semi-quantitatively estimating the concentration of readily oxidizable organic vapors in a gas sample, as for example ethanol in a human breath sample, is disclosed. The ethanol-sensitive solid indicator is a solid... | 09/03/1996 |
| 5517985 | Carbon dioxide detector and shield An apparatus (14) for detecting carbon dioxide in exhaled gas is disclosed. The apparatus comprises an indicating element (10) for changing color when exposed to carbon dioxide and a carbon dioxide shield (12) for absorbing a predetermined level of carbon... | 05/21/1996 |
| 5495744 | Method of correcting componential concentration in expiration and expiration analyzer A first sample measuring passage provided between a collection port and a suction pump has a sample gas measurer for measuring expiration components, while a second sample measuring passage which is provided in parallel with the first sample measuring pas... | 03/05/1996 |
| 5496740 | Method and apparatus for determining the concentration of components of liquid systems Testing apparatus is provided in the form of a pen and has a body 11 and cap 12. The body 11 has an inlet 13 at its tip which communicates with a fuel cell chamber 14, containing a fuel cell 15, and, via that chamber, with a passage 16 and a cylinder 17. ... | 03/05/1996 |
| 5472668 | Carbon dioxide monitor The monitor which provides a detectable indication of the presence of an elevated proportion of carbon dioxide compared to that in normal ambient air, comprises a substrate coated by an intimate mixture of a transparent plasticised polymer vehicle, and an... | 12/05/1995 |
| 5458853 | Breath analysis device A dual breath analysis device having a passive first mode of testing and analysing an exhaled breath sample without the use of a mouthpiece, and a second mode of testing and analysing a second breath sample through a mouthpiece apparatus when the first mo... | 10/17/1995 |
| 5443794 | Measuring apparatus This invention relates to apparatus for measuring the concentration of a volatile component in a gas and in particular, but not exclusively, to breath alcohol testing apparatus. In such apparatus 10, a pressure transducer 15 is provided to detect the ambi... | 08/22/1995 |
| 5400637 | System and method of checking calibration of breath alcohol measuring instrument with barometric pressure compensation A system and method for checking the calibration of a breath alcohol measuring instrument by the use of alcohol standards all containing substantially identical concentrations of alcohol and the use of a calculator which generates an expected measured val... | 03/28/1995 |
| 5376555 | Method for testing breath alcohol with discrimination between alveolar and upper respiratory tract alcohol A method and infrared sensing device for determining the concentration of alveolar alcohol in a breath sample exhaled by a subject into an infrared sensing device. The presence of alcohol from the upper respiratory tract of the subject is detected by cont... | 12/27/1994 |