Patents by Inventor Richard E. Williamson

Richard E. Williamson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8920577
    Abstract: A method of treating a substrate comprises, in one aspect, placing a substrate having material on a surface thereof in a treatment chamber; directing a stream of a liquid treatment composition to impinge the substrate surface; and directing a stream of water vapor to impinge the substrate surface and/or to impinge the liquid treatment composition. A preferred aspect of this invention is the removal of materials, and preferably photoresist, from a substrate, wherein the treatment composition is a liquid sulfuric acid composition comprising sulfuric acid and/or its desiccating species and precursors.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: December 30, 2014
    Assignee: Tel FSI, Inc.
    Inventors: David DeKraker, Jeffery W. Butterbaugh, Richard E. Williamson
  • Patent number: 7913706
    Abstract: Tool for treating microelectronic workpieces with one or more treatment materials, including liquids, gases, fluidized solids, dispersions, combinations of these, and the like. The invention provides an approach for rapid, efficient rinsing of wetted surface(s), and is particularly advantageous when used to rinse the lower surface of moveable barrier structures such as a barrier plate that overlies a workpiece being treated in such a manner to define a tapering flow channel over the workpiece. Rather than spray rinsing liquid onto the surface in a manner that generates undue splashing, droplet, or mist generation, the liquid is flowingly dispensed, preferably under laminar flow conditions, onto a surface that is in fluid communication with the surface to be rinsed. A smooth, uniform wetting and sheeting action results to accomplish rinsing with a significantly reduced risk of generating particle contamination.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: March 29, 2011
    Assignee: FSI International, Inc.
    Inventors: David DeKraker, Jimmy D. Collins, Tracy A. Gast, Alan D. Rose, Richard E. Williamson
  • Publication number: 20100326477
    Abstract: A method of treating a substrate comprises, in one aspect, placing a substrate having material on a surface thereof in a treatment chamber; directing a stream of a liquid treatment composition to impinge the substrate surface; and directing a stream of water vapor to impinge the substrate surface and/or to impinge the liquid treatment composition. A preferred aspect of this invention is the removal of materials, and preferably photoresist, from a substrate, wherein the treatment composition is a liquid sulfuric acid composition comprising sulfuric acid and/or its desiccating species and precursors.
    Type: Application
    Filed: September 1, 2010
    Publication date: December 30, 2010
    Inventors: David DeKraker, Jeffery W. Butterbaugh, Richard E. Williamson
  • Patent number: 7819984
    Abstract: A method of treating a substrate comprises, in one aspect, placing a substrate having material on a surface thereof in a treatment chamber; directing a stream of a liquid treatment composition to impinge the substrate surface; and directing a stream of water vapor to impinge the substrate surface and/or to impinge the liquid treatment composition. A preferred aspect of this invention is the removal of materials, and preferably photoresist, from a substrate, wherein the treatment composition is a liquid sulfuric acid composition comprising sulfuric acid and/or its desiccating species and precursors.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: October 26, 2010
    Assignee: FSI International, Inc.
    Inventors: David DeKraker, Jeffery W. Butterbaugh, Richard E. Williamson
  • Publication number: 20090038647
    Abstract: Tool for treating microelectronic workpieces with one or more treatment materials, including liquids, gases, fluidized solids, dispersions, combinations of these, and the like. The invention provides an approach for rapid, efficient rinsing of wetted surface(s), and is particularly advantageous when used to rinse the lower surface of moveable barrier structures such as a barrier plate that overlies a workpiece being treated in such a manner to define a tapering flow channel over the workpiece. Rather than spray rinsing liquid onto the surface in a manner that generates undue splashing, droplet, or mist generation, the liquid is flowingly dispensed, preferably under laminar flow conditions, onto a surface that is in fluid communication with the surface to be rinsed. A smooth, uniform wetting and sheeting action results to accomplish rinsing with a significantly reduced risk of generating particle contamination.
    Type: Application
    Filed: July 29, 2008
    Publication date: February 12, 2009
    Inventors: David DeKraker, Jimmy D. Collins, Tracy A. Gast, Alan D. Rose, Richard E. Williamson
  • Publication number: 20080283090
    Abstract: A method of treating a substrate comprises, in one aspect, placing a substrate having material on a surface thereof in a treatment chamber; directing a stream of a liquid treatment composition to impinge the substrate surface; and directing a stream of water vapor to impinge the substrate surface and/or to impinge the liquid treatment composition. A preferred aspect of this invention is the removal of materials, and preferably photoresist, from a substrate, wherein the treatment composition is a liquid sulfuric acid composition comprising sulfuric acid and/or its desiccating species and precursors.
    Type: Application
    Filed: May 15, 2008
    Publication date: November 20, 2008
    Inventors: David DeKraker, Jeffery W. Butterbaugh, Richard E. Williamson
  • Patent number: 7154026
    Abstract: The present invention relates generally to isolated genes which encode polypeptides involved in cellulose biosynthesis in plants and transgenic plants expressing same in sense or antisense orientation, or as ribozymes, co-suppression or gene-targeting molecules. More particularly, the present invention is directed to a nucleic acid molecule isolated from Arabidopsis thaliana, Oryza sativa, wheat, barley, maize, Brassica spp., Gossypium hirsutum and Eucalyptus spp. which encode or an enzyme which is important in cellulose biosynthesis, in particular the cellulose synthase enzyme and homologues, analogues and derivatives thereof and uses of same in the production of transgenic plants expressing altered cellulose biosynthetic properties.
    Type: Grant
    Filed: August 26, 2002
    Date of Patent: December 26, 2006
    Assignee: The Australian National University
    Inventors: Antonio Arioli, Richard E. Williamson, Andreas S. Betzner, Liangcai Peng
  • Publication number: 20030126643
    Abstract: The present invention relates generally to isolated genes which encode polypeptides involved in cellulose biosynthesis in plants and transgenic plants expressing same in sense or antisense orientation, or as ribozymes, co-suppression or gene-targeting molecules. More particularly, the present invention is directed to a nucleic acid molecule isolated from Arabidopsis thaliana, Oryza sativa, wheat, barley, maize, Brassica spp., Gossypium hirsutum and Eucalyptus spp. which encode or an enzyme which is important in cellulose biosynthesis, in particular the cellulose synthase enzyme and homologues, analogues and derivatives thereof and uses of same in the production of transgenic plants expressing altered cellulose biosynthetic properties.
    Type: Application
    Filed: August 26, 2002
    Publication date: July 3, 2003
    Inventors: Antonio Arioli, Richard E. Williamson, Andreas S. Betzner, Liangcai Peng
  • Patent number: 6495740
    Abstract: The invention relates generally to isolated genes which encode polypeptides involved in cellulose biosynthesis in plants and transgenic plants expressing same in sense or antisense orientation, or as ribozymes, co-suppression or gene-targeting molecules. More particularly, the present invention is directed to a nucleic acid molecule isolated from Arabidopsis thaliana, Oryza sativa, wheat, barley, maize, Brassica ssp., Gossypium hirsutum ssp. and Eucalyptus ssp. which encode an enzyme which is important in cellulose biosynthesis, in particular the cellulose synthase enzyme and homologues, analogues and derivatives thereof and uses of same in the production of transgenic plants expressing altered cellulose biosynthetic properties.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: December 17, 2002
    Assignee: The Austrailian National University
    Inventors: Antonio Arioli, Richard E. Williamson, Andreas S. Betzner, Liangcai Peng
  • Patent number: D1025898
    Type: Grant
    Filed: March 21, 2022
    Date of Patent: May 7, 2024
    Assignee: BOSE CORPORATION
    Inventors: Paul C. Williamson, Ethan J. Colburn, Thomas D. Chambers, Richard Lionel Lanoue, George E. P. Chute