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Attorney: Walker; William B.


Number of patents: 247
Last date: January 17, 2006

1              
NumberTitleIssue Date
6986169Sport protective headgear
A sport protective headgear comprising a main section that is to be placed on the occiput of a head from which extends a parietal section that is to be placed against the parietal of a head. Also, integrally connected to the main section is a right side section that...
01/17/2006
6905612Plasma concentrate apparatus and method
A plasma concentrator for producing plasma concentrate from a plasma from which erythrocytes have been substantially removed. The device comprises a concentrating chamber having an inlet port and an concentrate outlet, the concentrating chamber containing hydrogel b...
06/14/2005
6691324Sport protective headgear
A goggle retention system which also acts as a sport protective headgear. The headgear takes the form of a main section which is to be placed on the occiput of a head from which extends a parietal section which is to be placed against the parietal of a he...
02/17/2004
6455692Method of concentrating polynucleotides using MIPC
The present invention is directed to improved methods for detection of mutations in DNA using Denaturing Matched Ion Polynucleotide Chromatography (DMIPC). The invention includes the following aspects: analysis of PCR amplification products to identify fa...
09/24/2002
6419824Apparatus and method for separating and purifying polynucleotides
The disclosure describes an ambient or low pressure device for separating polynucleotide fragments from a mixture of polynucleotide fragments comprises a tube having an upper solution input chamber, a lower eluant receiving chamber, and a fixed unit of se...
07/16/2002
6372130Non-polar media for polynucleotide separations
Nonporous beads having an average diameter of about 0.5-100 microns are suitable for chromatographic separation of mixtures of polynucleotides when the beads comprise a nonporous particle which are coated with a polymer or which have substantially all sur...
04/16/2002
6372142Column for DNA separation by matched ion polynucleotide chromatography
An improved separation column and method for separating a mixture of double stranded DNA fragments by Matched Ion Polynucleotide Chromatography. The cylindrical column has an ID greater than about 5 mm and contains polymer beads. The beads have an average...
04/16/2002
6361672Multiple laser diode electromagnetic radiation source in multiple electrophoresis channel systems
The present invention is a multiple channel electrophoresis system which includes a multiple laser diode illumination source. The multiple laser diode illumination source has a plurality of individual laser diodes, each of which is situated so as to provi...
03/26/2002
6355791Polynucleotide separations on polymeric separation media
Non-polar polymeric separation media, such as beads or monoliths, are suitable for chromatographic separation of mixtures of polynucleotides when the surface of the media are unsubstituted or substituted with a hydrocarbon group having from one to 1,000,0...
03/12/2002
6355417Band array display of polynucleotide separations
A method and apparatus for representing double stranded nucleic acid fragments which have been separated by a chromatographic process as an array of bands which can be accurately quantified, optimized and stored. Using, for example, a Matched Ion Polynucl...
03/12/2002
6355165MIPC chromatographic apparatus with improved temperature control
A liquid chromatography apparatus with stationary and mobile phase temperature controls suitable for polynucleotide separations by MIPC and DMIPC processes. The apparatus includes heater means with a temperature control system; a matched ion polynucleotid...
03/12/2002
6342161Method for high resolution liquid chromatographic separation of double-stranded DNA
Mixtures of dsDNA fragments are separated by Matched Ion Polynucleotide Chromatography (MIPC) using an isocratic mobile phase to elute polynucleic acid from an MIPC column. The use of isocratic elution conditions provides a marked improvement in the separ...
01/29/2002
6309549Polynucleotide separations on polymeric separation
Non-polar polymeric separation media, such as beads or monoliths, are suitable for chromatographic separation of mixtures of polynucleotides when the surfaces of the media are unsubstituted or substituted with a hydrocarbon group having from one to 1,000,...
10/30/2001
6287822Mutation detection method
The present invention is directed to improved methods for detection of mutations in DNA using Denaturing Matched Ion Polynucleotide Chromatography (DMIPC). The invention includes the following aspects: analysis of PCR amplification products to identify fa...
09/11/2001
6265168Apparatus and method for separating and purifying polynucleotides
A method for removing a target DNA fragment having a predetermined base-pair length from a mixture of DNA fragments comprises the following steps. A mixture of DNA fragments which may contain the target DNA fragments is applied to a separation column cont...
07/24/2001
6258264Non-polar media for polynucleotide separations
Nonporous beads having an average diameter of about 0.5-100 microns are suitable for chromatographic separation of mixtures of polynucleotides when the beads comprise a nonporous particle which are coated with a polymer or which have substantially all sur...
07/10/2001
6251272System and column for performing polynucleotide separations using liquid chromatography
Improved liquid chromatography systems having components made of titanium, stainless steel, or organic polymeric material are useful in the separation of polynucleotide fragments, particularly large fragments of double-stranded polynucleotides, by Matched...
06/26/2001
6218153Target DNA amplification by MIPC and PCR
A method for detecting a putative mutant DNA in a sample of DNA includes the steps of amplifying the sample of DNA using PCR; hybridizing the amplified sample to form a mixture of homoduplexes and heteroduplexes; separating the mixture into fractions by D...
04/17/2001
6210885Modifying double stranded DNA to enhance separations by matched ion polynucleotide chromatography
Covalently bound non-polar tags are used to increase the retention times of double stranded polynucleotides on Matched Ion Polynucleotide Chromatography (MIPC) columns. In doing so, separations of DNA mixture components is improved. Additionally, when the...
04/03/2001
6187539Analysis of nicked DNA by matched ion polynucleotide chromatography
The present invention provides a method for calibrating a MIPC column wherein the calibration relates to the determination of the organic solvent component in the mobile phase required to elute dsDNA fragments of different base pair lengths at specific re...
02/13/2001
6174441Method for performing polynucleotide separations using liquid chromatography
Improved liquid chromatography systems having components made of titanium, stainless steel, or organic polymeric material are useful in the separation of polynucleotide fragments, particularly large fragments of double-stranded polynucleotides, by Matched...
01/16/2001
6156206Process for performing polynucleotide separations
The invention recognizes the deleterious effects of trace, and even undetectable amounts of multivalent cations on the separation of mixtures of polynucleotides, especially double stranded polynucleotides, and provides an improved method for separating su...
12/05/2000
6136195MIPC column cleaning system and process
An apparatus for effecting base pair length separations of DNA fragments by matched ion paired chromatography comprising a separation column containing separation media having non-polar DNA separation surfaces, separation solution supply means, and a sepa...
10/24/2000
6103112MIPC chromatographic apparatus with improved temperature control
A liquid chromatography apparatus with stationary and mobile phase temperature controls suitable for polynucleotide separations by MIPC and DMIPC processes. The apparatus includes heater means with a temperature control system; a matched ion polynucleotid...
08/15/2000
6074880Sample analyte containing solution fraction collection system, and method of use
Disclosed is a system and method which allows user controlled formation, and ejection of droplets of sample analyte containing solutions, thereby enabling precise user directed fractionalization and distributed collection of sample analytes....
06/13/2000
6066258Polynucleotide separations on polymeric separation media
Non-polar polymeric separation media, such as beads or monoliths, are suitable for chromatographic separation of mixtures of polynucleotides when the surfaces of the media are unsubstituted or substituted with a hydrocarbon group having from one to 1,000,...
05/23/2000
6056877Non-polar media for polynucleotide separations
Nonporous beads having an average diameter of about 0.5-100 microns are suitable for chromatographic separation of mixtures of polynucleotides when the beads comprise a nonporous particle which are coated with a polymer or which have substantially all sur...
05/02/2000
6041260Method and apparatus for endometrial ablation
An endometrial ablation apparatus and method wherein an RF current having a frequency of between 250 kHz and 100 MHz is passed through the entire surface of an endometrium in order to provide heating of the endometrium. An electroconductive expandable mem...
03/21/2000
6030527Apparatus for performing polynucleotide separations using liquid chromatography
Improved liquid chromatography systems having components made of titanium, stainless steel, or organic polymeric material are useful in the separation of polynucleotide fragments, particularly large fragments of double-stranded polynucleotides, by Matched...
02/29/2000
6027898Chromatographic method for mutation detection using mutation site specifically acting enzymes and chemicals
A method for analyzing a sample of double stranded DNA to determine the presence of a mutation therein comprises contacting the sample with a mutation site binding reagent, and chromatographically separating and detecting the product. The chromatographic ...
02/22/2000
6024878Method for high resolution liquid chromatographic separation of polynucleotides
Mixtures of dsDNA fragments are separated by Matched Ion Polynucleotide Chromatography (MIPC) using an isocratic mobile phase to elute polynucleic acid from an MIPC column. The use of isocratic elution conditions provides a marked improvement in the separ...
02/15/2000
6017457Method for performing polynucleotide separations using liquid chromatography
Improved liquid chromatography systems having components made of titanium, stainless steel, or organic polymeric material are useful in the separation of polynucleotide fragments, particularly large fragments of double-stranded polynucleotides, by Matched...
01/25/2000
6008055Modular component fiber optic fluorescence detector system, and method of use
Systems and methods for inducing and detecting sample analyte(s) identifying fluorescence are disclosed. In particular, a system which includes at least two fiber optic means, within a "throw-away" modular component system component with at least four por...
12/28/1999
5997742Method for performing polynucleotide separations using liquid chromatography
Improved liquid chromatography systems having components made of titanium, stainless steel, or organic polymeric material are useful in the separation of polynucleotide fragments, particularly large fragments of double-stranded polynucleotides, by Matched...
12/07/1999
5989296Solvent process for recovering indigo dye from textile scrap
A process for recovering a vat dye from a textile using a heated organic solvent. The textile is contacted with a heated organic solvent in which the dye is soluble until dye is extracted from the textile into the solvent to produce a dye-containing solve...
11/23/1999
5986085Matched ion polynucleotide chromatography (MIPC) process for separation of polynucleotide fragments
A batch process for obtaining polynucleotide fragments, such as dsDNA, having a selected size from a mixture of polynucleotide fragments including the steps of a) applying a solution of the mixture of polynucleotide fragments and a counterion agent to a b...
11/16/1999
5972222Process for performing polynucleotide separations
The invention recognizes the deleterious effects of trace, and even undetectable amounts of multivalent cations on the separation of mixtures of polynucleotides, especially double stranded polynucleotides, and provides an improved method for separating su...
10/26/1999
5968758Method for detecting free IGFBP-1
Antibodies having binding affinity for free IGFBP-1, biological compositions including antibodies having binding affinity for free IGFBP-1, kits for detecting free IGFBP-1 using the antibodies, and cell lines for producing the antibodies are provided. Als...
10/19/1999
5891722Antibodies to free IGFBP-1
Antibodies having binding affinity for free IGFBP-1, biological compositions including antibodies having binding affinity for free IGFBP-1, kits for detecting free IGFBP-1 using the antibodies, and cell lines for producing the antibodies are provided. Als...
04/06/1999
5877029Device for detecting free IGFBP-1
Antibodies having binding affinity for free IGFBP-1, biological compositions including antibodies having binding affinity for free IGFBP-1, kits for detecting free IGFBP-1 using the antibodies, and cell lines for producing the antibodies are provided. Als...
03/02/1999
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