Patents by Inventor Andrew J. Urquhart

Andrew J. Urquhart 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: 8940484
    Abstract: The invention provides allelic ladder mixtures and individual alleles suitable for use in such mixtures. The allelic ladder mixtures give improved identification and distinguishing capabilities, particularly suitable in forensic investigations.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: January 27, 2015
    Assignee: Qiagen GmbH
    Inventors: Rebecca A. L. Barber, Michael D. Barber, Peter E. Johnson, Sharon M. Gillbard, Marc D. Haywood, Carolyn D. Smith, Jennifer A. Arnold, Trudy Burke, Andrew J. Urquhart, Peter P. Gill
  • Patent number: 8399191
    Abstract: The invention provides allelic ladder mixtures and individual alleles suitable for use in such mixtures. The allelic ladder mixtures give improved identification and distinguishing capabilities, particularly suitable in forensic investigations.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: March 19, 2013
    Assignee: Qiagen GmbH
    Inventors: Rebecca A. L. Barber, Michael D. Barber, Peter E. Johnson, Sharon M. Gillbard, Marc D. Haywood, Carolyn D. Smith, Jennifer A. Arnold, Trudy Burke, Andrew J. Urquhart, Peter P. Gill
  • Publication number: 20120094292
    Abstract: The invention provides allelic ladder mixtures and individual alleles suitable for use in such mixtures. The allelic ladder mixtures give improved identification and distinguishing capabilities, particularly suitable in forensic investigations.
    Type: Application
    Filed: December 19, 2011
    Publication date: April 19, 2012
    Applicant: FORENSIC SCIENCE SERVICE LTD.
    Inventors: Rebecca A.L. Barber, Michael D. Barber, Peter E. Johnson, Sharon M. Gillbard, Marc D. Haywood, Carolyn D. Smith, Jennifer A. Arnold, Trudy Burke, Andrew J. Urquhart, Peter P. Gill
  • Publication number: 20110269128
    Abstract: The invention provides allelic ladder mixtures and individual alleles suitable for use in such mixtures. The allelic ladder mixtures give improved identification and distinguishing capabilities, particularly suitable in forensic investigations.
    Type: Application
    Filed: April 18, 2011
    Publication date: November 3, 2011
    Applicant: FORENSIC SCIENCE SERVICE LTD.
    Inventors: Rebecca A.L. Barber, Michael D. Barber, Peter E. Johnson, Sharon M. Gillbard, Marc D. Haywood, Carolyn D. Smith, Jennifer A. Arnold, Trudy Burke, Andrew J. Urquhart, Peter P. Gill
  • Publication number: 20100330559
    Abstract: The invention provides allelic ladder mixtures and individual alleles suitable for use in such mixtures. The allelic ladder mixtures give improved identification and distinguishing capabilities, particularly suitable in forensic investigations.
    Type: Application
    Filed: December 7, 2009
    Publication date: December 30, 2010
    Applicant: FORENSIC SCIENCE SERVICE LTD.
    Inventors: REBECCA A. L. BARBER, MICHAEL D. BARBER, PETER E. JOHNSON, SHARON M. GILLBARD, MARC D. HAYWOOD, CAROLYN D. SMITH, JENNIFER A. ARNOLD, TRUDY BURKE, ANDREW J. URQUHART, PETER P. GILL
  • Patent number: 7645580
    Abstract: The invention provides allelic ladder mixtures and individual alleles suitable for use in such mixtures. The allelic ladder mixtures give improved identification and distinguishing capabilities, particularly suitable in forensic investigations.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: January 12, 2010
    Assignee: The Secretary of State of the Home Department
    Inventors: Rebecca A. L. Barber, Michael D. Barber, Peter E. Johnson, Sharon M. Gillbard, Marc D. Haywood, Carolyn D. Smith, Jennifer A. Arnold, Trudy Burke, Andrew J. Urquhart, Peter P. Gill
  • Patent number: 7087380
    Abstract: The invention provides allelic ladder mixtures and individual alleles suitable for use in such mixtures. The allelic ladder mixtures give improved identification and distinguishing capabilities, particularly suitable in forensic investigations.
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: August 8, 2006
    Assignee: The Secretary of State of the Home Department
    Inventors: Rebecca A. L. Griffiths, Michael D. Barber, Peter E. Johnson, Sharon M. Gillbard, Marc D. Haywood, Carolyn D. Smith, Jennifer A. Arnold, Trudy Burke, Andrew J. Urquhart, Peter P. Gill
  • Patent number: 5264070
    Abstract: Growth-orientation of a crystal on a semiconductor device is achieved by using an oriented seed layer to grow a monocrystalline layer of silicon on an oxide. The oriented seed layer is provided by a regimented layer of silicon precipitates, which are deposited onto a surface of the oxide in a conventional aluminum-silicon deposition process. A film of silicon is deposited onto the oriented seed layer to grow a monocrystalline layer of silicon. The monocrystalline layer of silicon is further coated with an oxide, and a further seed layer is deposited. In this manner, a plurality of monocrystalline layers of silicon can be deposited on and between insulating layers of oxide. The method can be used for the manufacture of silicon-on-oxide transistors, having a low density of crystalline defects.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: November 23, 1993
    Assignee: Motorola, Inc.
    Inventors: Andrew J. Urquhart, Ronald E. Pyle, Chi-Ming Hong
  • Patent number: 4994404
    Abstract: A process is disclosed for the formation of an LDD structure in an MOS transistor having a reduced mask count and providing high integrity source/drain junctions. In accordance with one embodiment of the invention an MOS transistor is formed having a gate dielectric overlying an active region of the substrate. A transistor gate is formed in a central portion of the active region and an oxidation layer is formed over the active region and the transistor gate. A lightly-doped source/drain region is formed which is self aligned to the transistor gate. A conformal layer of an oxygen reactive material is formed overlying the transistor gate and the active region. The oxygen reactive material is anisotropically etched in a oxygen plasma reactive ion etch to form a sidewall spacer on the edge the transistor gate. The oxygen reactive ion etch does not penetrate the oxidation layer overlying the active region. A heavily-doped source/drain region is formed which is self aligned to the edge of the sidewall spacer.
    Type: Grant
    Filed: August 28, 1989
    Date of Patent: February 19, 1991
    Assignee: Motorola, Inc.
    Inventors: David Y. Sheng, Yasunobu Kosa, Andrew J. Urquhart, Mark J. Cullen