U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Celebrity Inventors

Comic actor Danny Kaye received patent D166,807 for the co-design of "Blowout Toy or the Like". It's similar to one of those toys that unravels when you blow into at a birthday party except Kaye's has three blowouts going in different directions, not just one.

Newsletter  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.

 

Class 96/101 - CHROMATOGRAPHY TYPE APPARATUS


Subclass of Class 96 - Gas separation: apparatus
Definition: Apparatus comprising a column containing (a) a liquid, known
No. of patents: 263
Last issue date: 05/01/2012


1              
NumberTitleIssue Date
8167987Methods and systems for cooling a chromatographic column
Systems and methods for cooling a chromatographic column is disclosed generally, comprising heating a chromatographic column, supplying fluid into the column via the inlet end of the column at an inlet pressure, decreasing the temperature of the column, thereby caus...
05/01/2012
8152909Gas chromatography check valve and system
An apparatus, system, and method are disclosed for a gas chromatography (GC) system with a check valve. The check valve is situated downstream from the electronic flow control module and upstream of the injector. When a sample is volatized in the injector, the check...
04/10/2012
8152908Micromachined gas chromatography columns for fast separation of Organophosphonate and Organosulfur compounds and methods for deactivating same
Improved microcolumns and methods for producing microcolumns particularly suitable for use in gas chromatographs are disclosed. In particular, following deposition of the stationary phase coating, the microcolumns are subjected to a postcoating treatment with a mole...
04/10/2012
8123841Column design for micro gas chromatograph
Improved micro-columns and methods for producing micro-columns particularly suitable for use in gas chromatographs are disclosed. In particular, following deposition of the stationary phase coating, the micro-columns are subjected to a postcoating treatment with a m...
02/28/2012
8114200Multi-dimensional portable gas chromatograph system
A portable multi-dimensional gas chromatograph, the gas chromatograph including a carrier gas container, a regulator fluidly connected to the carrier gas container, a dopant chamber containing a reference chemical, at least one pre-concentrator which is fluidly conn...
02/14/2012
7964028Method and apparatus for selective capture of gas phase analytes using metal β-diketonate polymers
A process and sensor device are disclosed that employ metal β-diketonate polymers to selectively capture gas-phase explosives and weaponized chemical agents in a sampling area or volume. The metal β-diketonate polymers can be applied to surfaces in various analyti...
06/21/2011
7914612Compliant column sheath assembly for gas chromatography
A compliant column sheath assembly for use in a gas chromatograph is provided which includes an open tubular column in the form of a helical coil having a coiled length of between about 5 and 15 cm. The sheath assembly further includes an insulating sheath which sur...
03/29/2011
7524363Gas chromatograph column assembly
A separation column assembly for a gas chromatograph and the like is provided. The assembly is a self contained unit which allows very rapid heating and cooling of the column. ...
04/28/2009
7513936Flat spiral capillary column assembly with thermal modulator
The gas chromatography (GC) column assembly described herein consists of capillary GC column material, such as fused silica or metal capillary tubing, which is constrained to lie in a flat, ordered, spiral pattern and then encased between two thin opposing surfaces....
04/07/2009
7485175Device for positioning and holding a length of gas chromatographic column
The invention relates to a device for positioning and holding one or more chromatographic column lengths being subjected to one or more jets of fluid to change the temperature, especially in a modulator for GC×GC. The device comprises one or more V-shaped seats in ...
02/03/2009
7409850Systems and methods for maximizing heat transfer efficiency to and minimizing thermal gradients in an analytic column
An improved gas chromatograph system includes a radiant source, an insert located to receive an output of the radiant source, and an analytic column wound on a concave surface of the insert so that successive coils of the wound analytic column are in direct contact ...
08/12/2008
7399410Chromatographic column and methods for controlling sorbent density
Disclosed herein are apparatus and methods for mitigating column bed compression over time. This invention provides for an improved column design and method of controlling bed density in a chromatographic column using a protruding portion of a filter assembly. The i...
07/15/2008
7390409Membrane holder for membrane adsorber chromotography
Membrane holder for membrane adsorber chromatography comprising a housing body (12) with a reception space for at least one layer of adsorber membranes (22) and at least one first housing cap (34) for closing a first reception space opening, whi...
06/24/2008
7383718Single stage flow modulator for performing comprehensive chromatography
A single stage flow modulator for performing comprehensive chromatography comprises a first chromatographic column, a valve fluidically coupled to at least two fluid conduits, wherein when in a first position, the valve directs a control flow to direct an output of ...
06/10/2008
7384457Seal for gas chromatography
A seal forming a fluid tight connection between a gas chromatography column and a sample inlet assembly is disclosed. The seal is formed by a metal injection molding process. The seal has a first surface adapted for sealing with the sample inlet assembly and a secon...
06/10/2008
7384453Self-contained chromatography system
A self-contained chromatography system is provided and includes a chromatography column, a carrier gas reservoir containing a carrier gas and an analyte stream processing device, wherein the carrier gas reservoir is disposed upstream from the chromatography column a...
06/10/2008
7368000Treatment of effluent gases
A method is described for recovering a noble gas, such as xenon or krypton, from a first gas mixture comprising a plurality of components, one of which is the noble gas and the others are typically helium and/or nitrogen, argon, and relatively light fluorocarbons. T...
05/06/2008
7360394Multi-purpose modular pyrolysis and thermal processing system for chemical and biological threat agent detection
A multi-purpose modular pyrolysis and thermal processing system (MPMPTPS) for pyrolyzing and/or vaporizing liquids and solids to create an evolved vapor suitable for introduction into a gas-chromatography and/or vapor detection system, thereby allowing detection, cl...
04/22/2008
7361208Chromatography oven with heat exchange and method of use
Methods and systems for cooling gas chromatography ovens that comprise a housing having a fluid entry and a sleeve positioned within the housing to provide a fluid gap between the inner surface of the housing and the outer surface of the sleeve, where the sleeve is ...
04/22/2008
7361206Apparatus and method for water vapor removal in an ion mobility spectrometer
The present invention is directed to an apparatus and a method for continuously removing water vapor from a closed loop, re-circulated gas flow in an ion mobility spectrometer using a water permeable membrane, having a first side and a second side opposite the first...
04/22/2008
7361278Process for producing mass transfer device and apparatus for production thereof
A process for producing a mass transfer device is provided which enables packing of a packing material uniformly in a flow channel, and transfers a specified substance by flowing a fluid containing the specified substance through a flow channel on a substrate. A mas...
04/22/2008
7343779High performance, hand-held gas chromatograph, method and system
A hand-held, ultra-sensitive gas chromatograph which provides real time detection and analysis of chemical compounds or impurities is disclosed. The detection sensitivity ranges from parts per trillion to parts per million with an average retention time ranging from...
03/18/2008
7329386Column 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
7314505Stationary 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
7311757Analyte 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
7309377Method for separation of isotopes
This invention relates to a method for separation of isotopes, that is, to obtain isotopically pure fractions by separating natural 1 isotope mixtures in elements, where hydrogen is employed as ligand on the elements that are to be isotopically separated, and where ...
12/18/2007
7306656Gas chromatography apparatus
The invention relates to a gas chromatography apparatus with a cooling device, wherein the cooling device includes a closed cooling circuit containing a refrigerant, so that no refrigerant is wasted. ...
12/11/2007
73066493D miniature preconcentrator and inlet sample heater
The present invention relates to a three dimensional preconcentrator and inlet heater. The preconcentrator consists of a substrate with passageways, a conductive material coated to the top and the bottom of the substrate and an adsorbent coating covering the entire ...
12/11/2007
7303589Process for dyeing human keratin fibers, having a lightening effect, comprising at least one fluorescent compound and compositions of the same
The present disclosure relates to a process for dyeing human keratin materials having a lightening effect, applying to the materials a composition comprising, in a cosmetically acceptable medium, at least one fluorescent dye having the following formula:
12/04/2007
7303610Chromatography 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
7291203Negative 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
7284410Chromatographic interface for thermal desorption systems
Disclosed are systems and methods that include a thermal desorption unit, a chromatographic column, and an interface device between the unit and the column. The interface device controls the fluid flowing into the column, such as by providing additional carrier gas ...
10/23/2007
7273517Non-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
7269994Chromatograph/mass spectrometer
The present invention provides a chromatograph/mass spectrometer capable of producing a composite chromatogram from plural chromatogram signals without causing the baseline level to rise or the intensity of the chromatogram peak to decrease. The chromatograph/mass s...
09/18/2007
7267796Preparative liquid chromatograph using plural detectors
The preparative liquid chromatograph uses a plurality of detectors including a mass spectrometer, and a chromatogram generator is provided for generating a plurality of chromatograms each corresponding to each of the plurality of detectors. The plurality of chromato...
09/11/2007
7261812Multi-column separation devices and methods
Chromatographic separation devices include multiple batch-processed columns joined by a body structure and adapted to perform parallel analyses. Both slurry-packed and monolithic column embodiments are provided. One or more liquid-permeable frits of various types ma...
08/28/2007
7260978Gas chromatography/mass spectrometry system
A gas chromatography/mass spectrometry system includes two sample introduction parts, a gas chromatography part having two columns, a column oven for housing the two columns in a parallel configuration, an interface part through which an outlet end of each of the tw...
08/28/2007
7258726Method 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
7246013Data processor for use in chromatographic analysis
A data processor for analyzing chromatograms in detail and collecting analysis-associated information necessary for verification of data validity throughout an analysis process. The data processor includes a first data collecting section which collects and records a...
07/17/2007
7228067Chromatography 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
1              
 
Sign InRegister
Username  
Password   
forgot password?