Patents by Inventor Doug Hutchins

Doug Hutchins 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).

  • Thick perforated polishing pad and method for making same
    Publication number: 20070111644
    Abstract: A thick perforated polishing pad and method for making same which includes a polishing pad having a thick polymer sheet with multiple circular openings or perforations contained therein that are produced in the pad by machining techniques such as drilling.
    Type: Application
    Filed: September 27, 2006
    Publication date: May 17, 2007
    Inventors: Spencer Preston, Doug Hutchins
  • POLISHING PAD AND METHOD OF MAKING SAME
    Publication number: 20060252358
    Abstract: An article or polishing pad for altering a surface of a work piece includes a polymer matrix created by reaction injection molding of size controlled gas bubbles within a polyurethane matrix. The proposed liquid urethane precursor is first injected into an actuated mold and cured. The molded product is then removed from the mold and double side faced or ground to form a single thin polishing pad comprising a single layer of homogeneous material.
    Type: Application
    Filed: July 24, 2006
    Publication date: November 9, 2006
    Applicant: RIMPAD TECH LTD.
    Inventors: Spencer Preston, Doug Hutchins, Steve Hymes
  • POLISHING PAD AND METHOD OF MAKING SAME
    Publication number: 20060035573
    Abstract: An article or polishing pad for altering a surface of a work piece includes a polymer matrix created by reaction injection molding of size controlled gas bubbles within a polyurethane matrix. The proposed liquid urethane precursor is first injected into an actuated mold and cured. The molded product is then removed from the mold and double side faced or ground to form a single thin polishing pad comprising a single layer of homogeneous material.
    Type: Application
    Filed: October 11, 2005
    Publication date: February 16, 2006
    Applicant: RIMPAD TECH LTD.
    Inventors: Spencer Preston, Doug Hutchins, Steve Hymes
  • Polishing pad and method of making same
    Patent number: 6986705
    Abstract: An article or polishing pad for altering a surface of a work piece includes a polymer matrix created by reaction injection molding of size controlled gas bubbles within a polyurethane matrix. The proposed liquid urethane precursor is first injected into an actuated mold and cured. The molded product is then removed from the mold and double side faced or ground to form a single thin polishing pad comprising a single layer of homogeneous material.
    Type: Grant
    Filed: April 5, 2004
    Date of Patent: January 17, 2006
    Assignee: RimPad Tech Ltd.
    Inventors: Spencer Preston, Doug Hutchins, Steve Hymes
  • Polishing pad and method of making same
    Publication number: 20050218548
    Abstract: An article or polishing pad for altering a surface of a work piece includes a polymer matrix created by reaction injection molding of size controlled gas bubbles within a polyurethane matrix. The proposed liquid urethane precursor is first injected into an actuated mold and cured. The molded product is then removed from the mold and double side faced or ground to form a single thin polishing pad comprising a single layer of homogeneous material.
    Type: Application
    Filed: April 5, 2004
    Publication date: October 6, 2005
    Inventors: Spencer Preston, Doug Hutchins, Steve Hymes