Quotables
"During my service in the United States Congress, I took the initiative in creating the Internet."
Al Gore ; The basis for the later misquote by US Republicans that Gore had "invented" the Internet. Gore was the leading political champion of the modern-day Internet.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8132443 | Microfabricated gas chromatograph The present invention is generally directed to a microfabricated gas chromatograph column having two patterned substrates, each optionally having a stationary phase material coating, bonded together to provide a continuous flow channel. The flow channel can have a s... | 03/13/2012 |
| 7841225 | Miniaturised separation column with bonding agent for a gas chromatograph The invention concerns a separation column in microsystem technology for a gas chromatograph comprising a first substrate, a second substrate which is arranged on the first substrate, wherein a trench structure is provided in at least one substrate and the trench st... | 11/30/2010 |
| 7647812 | Apparatus, system, and method for low cost high resolution chemical detection An apparatus, system, and method are disclosed for low cost high resolution chemical detection. The apparatus includes two outer sealing bodies with flow channels etched into the bodies. Two gas chromatography (GC) columns are between the outer bodies, with a valve ... | 01/19/2010 |
| 7559226 | Radiant thermal energy absorbing analytical column An analytical column includes a coating that absorbs at least one of ultraviolet (UV) and visible (VIS) radiant energy and converts the radiant energy into heat. ... | 07/14/2009 |
| 7367216 | Phased micro analyzer V, VI A micro fluid analyzer having a concentrator and two or more separators. The analyzer may have one, two or more pumps. The analyzer may have a hyper pre-concentrator having a number of channels. There are numerous detectors positioned along the flow path of the anal... | 05/06/2008 |
| 7351590 | Methods and compositions for directed microwave chemistry The present invention concerns a novel means by which specific chosen reactions can be accelerated through the use of a new type of artificial enzyme. The invention allows specific reactions to occur at an accelerated rate, even in the presence of other non-chosen m... | 04/01/2008 |
| 7329386 | Column packing material and method for producing the same The first subject of this invention is a column packing material comprising: a silica gel having a silanol group; a first chemical modification group which is bound to said silanol group; a silicon... | 02/12/2008 |
| 7314505 | Stationary phase deposition based on onium salts Onium salt chemistry can be used to deposit very uniform thickness stationary phases on the wall of a gas chromatography column. In particular, the stationary phase can be bonded to non-silicon based columns, especially microfabricated metal columns. Non-silicon mic... | 01/01/2008 |
| 7311757 | Analyte pre-concentrator for gas chromatography An analyte pre-concentrator for gas chromatography is disclosed generally comprising a tube having a restricted outlet and packed with an adsorbent, wherein the tube serves as the liner of a chromatographic injector, as an adsorbent trap coupled to a chromatographic... | 12/25/2007 |
| 7303610 | Chromatography column assembly Chromatography column assembly of the direct heating type, comprising at least a capillary column, at least a tubular structure which envelops the capillary column and is coaxial with it, means to directly heat the column, means to detect the temperature of the colu... | 12/04/2007 |
| 7291263 | Polymeric fiber rods for separation applications A separation element is provided for use in a chromatographic analysis system for the separation of a mixture using a stationary phase and a mobile phase. The separation element comprises a fluid transmissive fiber rod comprising a plurality of fibers entangled to p... | 11/06/2007 |
| 7291203 | Negative temperature profiling using microwave GC apparatus A method is disclosed for performing GC separations using a separation protocol including at least one negative temperature ramp, where the negative temperature ramp is controlled either by the introduction of a gaseous coolant at a controlled and adjustable rate or... | 11/06/2007 |
| 7273517 | Non-planar microfabricated gas chromatography column A non-planar microfabricated gas chromatography column comprises a planar substrate having a plurality of through holes, a top lid and a bottom lid bonded to opposite surfaces of the planar substrate, and inlet and outlet ports for injection of a sample gas and elut... | 09/25/2007 |
| 7258726 | Method and apparatus for measuring velocity of chromatographic pulse An Apparatus and method for two-stage chromatographic separation uses thermal modulation. The chromatographic column or modulation tube (1) has a loop structure such that two portions of modulation tube (1) can be thermally modulated simultaneously by ... | 08/21/2007 |
| 7228067 | Chromatography column assembly with woven tubular mesh heater element A direct-heating column assembly for chromatography, includes at least one capillary column and at least one element made of electrically conductive material in contact with the capillary column. The element includes a plurality of filaments woven together to form a... | 06/05/2007 |
| 7201844 | Composite matrices with interstital polymer networks The present invention relates in general to the preparation and use of matrices having solid spaces, interstitial spaces and interstitial polymer networks. In particular, the interstitial polymer networks have utility in chemical and biochemical separations, solid p... | 04/10/2007 |
| 7155988 | Dual air particle sample cassette An air particle sample cassette enables concurrent or sequential collection of air particle samples. The dual air particle sample cassette has top and bottom covers that fit together to provide an airtight seal between them. The airtight seal may be provided by adhe... | 01/02/2007 |
| 7147695 | Microfabricated microconcentrator for sensors and gas chromatography Devices for enhancing the sensitivity of a microsensor or any other micro device by providing on-line preconcentration. Microconcentrators that can be integrated with a sensor or a micromachined GC to enhance the signal to noise ratio can include a miniaturized sorb... | 12/12/2006 |
| 7130534 | Gas chromatograph having a radiant oven for analytical devices A radiant oven comprises a radiant energy source configured to provide radiant electromagnetic energy, an insert configured to receive the radiant electromagnetic energy and convert the radiant electromagnetic energy into heat, and an additional element configured t... | 10/31/2006 |
| 7107818 | Method and device for comprehensive two-dimensional gas chromatography A method for detecting substances or mixtures of substances within a sample in an apparatus for comprehensive two-dimensional gas-chromatographic analysis according to the present invention, comprising the steps of: subjecting the ... | 09/19/2006 |
| 7104112 | Phased micro analyzer IV A fluid analyzer having a concentrator and separator for concentrating and separating fluid samples at pressures up to about 10,000 psi (˜700 bar). The concentrator and separator may consist of a solid-state thin-film heater-adsorber and a channel supported by a so... | 09/12/2006 |
| 7074331 | Separation system, components of a separation system and methods of making and using them Permeable polymeric monolithic materials are prepared in a column casing. In one embodiment, the permeable polymeric monolithic materials are polymerized while pressure is applied through a piston having a smooth piston head in contact with the polymerization mixtur... | 07/11/2006 |
| 7000452 | Phased micro fluid analyzer A micro fluid analyzer having a concentrator and separator. A strip continuous through a channel in the concentrator may provide a hot zone that may move with the flow of fluid through the channel of the concentrator to provide a concentration of heat in the flow. A... | 02/21/2006 |
| 6998040 | Sol-gel open tubular ODS columns with charged inner surface for capillary electrochromatography The present invention provides for a column for use in capillary electrochromatography including a tube, wherein the tube includes an inner surface having a positively or negatively charged, chemically-bonded stationary coating thereon. The present invention further... | 02/14/2006 |
| 6974495 | Analyte pre-concentrator for gas chromatography An analyte pre-concentrator for gas chromatography is disclosed generally comprising a tube having a restricted outlet and packed with an adsorbent, wherein the tube serves as the liner of a chromatographic injector, as an adsorbent trap coupled to a chromatographic... | 12/13/2005 |
| 6966991 | Methods and apparatus for packing chromatography columns and chromatography column Ultrasound transceivers (20) are distributed up the side wall of a chromatography column (1) and enable tracking of the progress of a rising bed front (5) during packing. Comparison with a predetermined stored profile is used for feedback contro... | 11/22/2005 |
| 6955709 | Method and device for vaporization injection of high volumes in gas chromatographic analysis This invention concerns a method and apparatus for vaporization injection of large volumes of liquid sample (substance to be analysed+solvent) introduced by a syringe needle into a heated vaporization chamber which is part of an injector coupled operatively to a dev... | 10/18/2005 |
| 6953455 | Medicine delivery system A medicine delivery system (10) implantable into a human or animal body includes a medicine delivery unit (14) and a control unit (12). A membrane (26) seals the delivery opening (22) of a medicine compartment (18) and is pr... | 10/11/2005 |
| 6941825 | Analytical devices based on diffusion boundary layer calibration and quantitative sorption A method and device for determining the concentration of analytes in a sample. The device has a surface with an extraction coating thereon. The method is carried out while the sample is highly agitated to maintain a substantially constant boundary layer. The sample ... | 09/13/2005 |
| 6910503 | Methods and apparatus for micro-fluidic analytical chemistry Improved valve and methods for analytical techniques and systems. The valve includes a main housing, together with a rotor and stator. The stator has openings therethrough which allow for fluid communication between tubing when connected to the valve, and one surfac... | 06/28/2005 |
| 6905029 | Cross-flow differential migration classifier A method, system, apparatus, and article of manufacture provide a cross-flow migration classifier capable of separating particles. The classifier provides a channel through which a sample, having one or more particles, passes in a first direction, wherein the channe... | 06/14/2005 |
| 6838640 | Separation microcolumn assembly for a microgas chromatograph and the like A high-sensitivity, separation microcolumn assembly for a microgas chromatograph and the like is provided. The assembly has an ultra-low mass complete with integrated heaters. The assembly uses multiple zones for temperature control, and microstructures that permit ... | 01/04/2005 |
| 6829918 | Method of and apparatus for measuring mercury contained in hydrocarbon A method of and an apparatus for measuring mercury present in a hydrocarbon, wherein a gas (G) such as an air containing no mercury is allowed to flow through a column filled with an adsorbent material effective to adsorb mercury, and a hydrocarbon sample to be meas... | 12/14/2004 |
| 6779379 | Method and device for vaporization injection The invention concerns a device for vaporizing injections of samples into a gas chromatography analysis device, comprising a vaporization chamber elongated lengthways and heated, as well as a syringe equipped with a needle, the device being of the type in which the ... | 08/24/2004 |
| 6732567 | Multilayered ceramic micro-gas chromatograph and method for making the same A micro-gas chromatograph column is formed by texturing a channel into a plurality of green-sheet layers, which are then sintered together to form a substantially monolithic structure. A thick-film paste may be added to the channel textured in the green-sheet layers... | 05/11/2004 |
| 6670024 | Glass-silicon column A glass-silicon column that can operate in temperature variations between room temperature and about 450° C. The glass-silicon column includes large area glass, such as a thin Corning 7740 boron-silicate glass bonded to a silicon wafer, with an electrode... | 12/30/2003 |
| 6666907 | Temperature programmable microfabricated gas chromatography column A temperature programmable microfabricated gas chromatography column enables more efficient chemical separation of chemical analytes in a gas mixture by the integration of a resistive heating element and temperature sensing on the microfabricated column. ... | 12/23/2003 |
| 6663697 | Microfabricated packed gas chromatographic column A new class of miniaturized gas chromatographic columns has been invented. These chromatographic columns are formed using conventional micromachining techniques, and allow packed columns having lengths on the order of a meter to be fabricated with a footp... | 12/16/2003 |
| 6656738 | Internal heater for preconcentrator An apparatus for collecting and detecting chemicals contained in a fluid includes a sorbent element, at least one chemical sensor, a first pump for pumping fluid through the sorbent element and a second pump for pumping fluid to the chemical sensor. The s... | 12/02/2003 |
| 6632268 | Method and apparatus for comprehensive two-dimensional gas chromatography A two-dimensional gas chromatograph with a primary column (14) and dual secondary columns (26, 28) is described. Flow rates in the primary column are less than those in the secondary columns due to an accumulation valve (16). Typically the ratio of second... | 10/14/2003 |
