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Allyl alcohol purification
Patent number: 5972173
Abstract: Mixtures of allyl alcohol and n-propanol are separated by extractive distillation using propylene carbonate, N-methyl pyrrolidone or gamma-butyrolactone extractive distillation solvent.
Type: Grant
Filed: November 9, 1998
Date of Patent: October 26, 1999
Assignee: Arco Chemical Technology, LP
Inventors: Te Chang, George F. Rowell
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Ionic thermal acid generators for low temperature applications
Patent number: 9541834
Abstract: New ionic thermal acid generator compounds are provided. Also provided are photoresist compositions, antireflective coating compositions, and chemical trim overcoat compositions, and methods of using the compositions.
Type: Grant
Filed: November 30, 2012
Date of Patent: January 10, 2017
Assignee: Rohm and Haas Electronic Materials LLC
Inventors: Gerhard Pohlers, Cong Liu, Cheng-Bai Xu, Kevin Rowell, Irvinder Kaur
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IDENTIFICATION OF SAMPLE COMPONENTS
Publication number: 20110151569
Abstract: The present disclosure relates to the identification of components in a sample based on the chemical nature of the component. In particular, although not exclusively, the present disclosure relates to the identification of hydrophobic and hydrophilic components using a mass spectrometric technique. The present invention also relates to kits and products used in the identification of the components, as well as other subject matter.
Type: Application
Filed: August 20, 2009
Publication date: June 23, 2011
Applicants: ROAR PARTICLES UK LIMITED, NANOFRONTIER PTE LTD
Inventors: Frederick Rowell, Jan Ma, Angelina Yi Mei Lim
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MALDI/SELDI analysis of complex mixtures comprising hydrophilic and hydrophobic analytes
Patent number: 9709583
Abstract: The present disclosure relates to the identification of components in a sample based on the chemical nature of the component. In particular, although not exclusively, the present disclosure relates to the identification of hydrophobic and hydrophilic components using a mass spectrometric technique. The present invention also relates to kits and products used in the identification of the components, as well as other subject matter.
Type: Grant
Filed: August 20, 2009
Date of Patent: July 18, 2017
Assignees: NANYANG TECHNOLOGICAL UNIVERSITY
Inventors: Frederick Rowell, Jan Ma, Angelina Yi Mei Lim
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Magnetic particle tagged reagents and techniques
Patent number: 9766256
Abstract: Methods for separating, cells, particles, or other molecules of interest (MOI) from unwanted materials not of interest (MNOI). by forced movement of MOI into certain zones having properties which deter the entry of unwanted materials. MOI are tagged with magnetic particles and moved with a magnetic field through a fluid, or zones, of higher specific gravity that prevents, unwanted less dense materials from entering. Buoyant or other forces are used to remove any unbound material from the complexes with ASG before reading. Readable labels include the magnetic particle tagged complex itself, and other labels such as enzymes, chemiluminescent materials, radioactive isotopes, chromogenic and fluorogenic substrates and other labels may be used. The invention applies to many assays, diagnostic tests, separative procedures and chemical syntheses.
Type: Grant
Filed: September 22, 2016
Date of Patent: September 19, 2017
Assignee: CHROME RED TECHNOLOGIES, LLC
Inventors: Henry A. Graham, John G. Gorman, James P. Rowell
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Magnetic particle tagged reagents and techniques
Publication number: 20070172899
Abstract: Methods for separating, in a continuous, multizone fluid medium, cells, particles, or other molecules of interest (MOI) from associated or contaminating unwanted materials not of interest (MNOI). The invention involves forced movement of MOI into certain zones having properties which deter the entry of unwanted materials. Differential movement of MOI and MNOI occurs by active counterforces that move MNOI but not MOI. MOI are tagged with magnetic particles and moved with a magnetic field through a fluid, or zones, of higher specific gravity that prevents, by flotation counterforce, unwanted less dense materials from entering. Surfaces specifically coated with reactants are reactive with the MOI in the tagged magnetic particle complex and of buoyant or other forces are used to remove any unbound material from the surface before reading.
Type: Application
Filed: March 8, 2007
Publication date: July 26, 2007
Inventors: Henry Graham, John Gorman, James Rowell
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Magnetic particle tagged reagents and techniques
Publication number: 20170016922
Abstract: Methods for separating, in a continuous, multizone fluid medium, cells, particles, or other molecules of interest (MOI) from associated or contaminating unwanted materials not of interest (MNOI). The invention involves forced movement of MOI into certain zones having properties which deter the entry of unwanted materials. Differential movement of MOI and MNOI occurs by active counterforces that move MNOI but not MOI. MOI are tagged with magnetic particles and moved with a magnetic field through a fluid, or zones, of higher specific gravity that prevents, by flotation counterforce, unwanted less dense materials from entering. Surfaces specifically coated with reactants are reactive with the MOI in the tagged magnetic particle complex and of buoyant or other forces are used to remove any unbound material from the surface before reading.
Type: Application
Filed: September 22, 2016
Publication date: January 19, 2017
Inventors: Henry A. Graham, John G. Gorman, James P. Rowell
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Magnetic particle tagged reagents and techniques
Patent number: 9488665
Abstract: Methods for separating, in a continuous, multizone fluid medium, cells, particles, or other molecules of interest (MOI) from associated or contaminating unwanted materials not of interest (MNOI). The invention involves forced movement of MOI into certain zones having properties which deter the entry of unwanted materials. Differential movement of MOI and MNOI occurs by active counterforces that move MNOI but not MOI. MOI are tagged with magnetic particles and moved with a magnetic field through a fluid, or zones, of higher specific gravity that prevents, by flotation counterforce, unwanted less dense materials from entering. Surfaces specifically coated with reactants are reactive with the MOI in the tagged magnetic particle complex and of buoyant or other forces are used to remove any unbound material from the surface before reading.
Type: Grant
Filed: March 8, 2007
Date of Patent: November 8, 2016
Assignee: CHROME RED TECHNOLOGIES, LLC
Inventors: Henry A. Graham, John G. Gorman, James P. Rowell
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Manual, self-contained, free-standing, vehicle washing/cleaning center
Patent number: 5033489
Abstract: A transportable, self-contained work site, designed specifically to facilitate manual vehicle washing and engine cleaning, comprising a rigid skeletal structure which is constructed of preformed, connectable modules and a lightweight raised platform or flooring which slopes inwardly to capture liquids for recycling.
Type: Grant
Filed: April 20, 1990
Date of Patent: July 23, 1991
Assignee: Autoglym America Corporation
Inventors: F. Budd Ferre, Rowell Sims, Vibert L. Kesler, James B. Mayfield
