Patents by Inventor Andrew Whitehead

Andrew Whitehead 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).

  • Publication number: 20110229372
    Abstract: A sterilizable pouch having both internal and external sterilization record indicators to indicate whether attempted steam sterilization of the pouch and contents was successful or unsuccessful. The pouch preferably has one indicium in each indicator responsive to multi-parameter sterilization by steam, and another indicium in each indicator responsive to gas sterilization, such as using ethylene oxide.
    Type: Application
    Filed: January 9, 2009
    Publication date: September 22, 2011
    Applicant: Crosstex International, Inc.
    Inventors: Andrew Whitehead, Mitchell Steinberg, Charles Hughes
  • Publication number: 20080044339
    Abstract: A layer of single crystal CVD diamond of high quality having a thickness greater than 2 mm. Also provided is a method of producing such a CVD diamond layer.
    Type: Application
    Filed: March 5, 2007
    Publication date: February 21, 2008
    Inventors: Geoffrey Scarsbrook, Philip Martineau, Barbel Dorn, Michael Cooper, John Collins, Andrew Whitehead, Daniel Twitchen, Ricardo Sussman
  • Publication number: 20070282270
    Abstract: A composite guidewire comprising a proximal wire segment having a proximal end, a distal end and a longitudinal axis extending therebetween, the distal end being formed with a first flat planar bonding face which extends parallel to the longitudinal axis, the proximal wire segment having a first elasticity; a distal wire segment having a proximal end, a distal end and a longitudinal axis extending therebetween, the proximal end being formed with a second flat planar bonding face which extends parallel to the longitudinal axis, the distal wire segment having a second elasticity; wherein the first and second flat planar bonding faces of the proximal wire segment are formed complementary to one another; and further wherein the proximal and distal wire segments are joined together by bonding the first flat planar bonding face to the second flat planar bonding face in an overlapping manner and a method for forming a composite guidewire.
    Type: Application
    Filed: May 10, 2007
    Publication date: December 6, 2007
    Inventors: Eric Mathews, Andrew Whitehead, John Panicci
  • Publication number: 20070272661
    Abstract: A method of producing a bonded structure which includes a layer of material capable of forming a diffusion or diffusion-type bond with diamond bonded to a diamond element. The method includes the step of applying electron beam heating to a localised region of contacting surfaces between the diamond and the layer of material, or the layer of material and a surface of a metal element or structure to cause bonding of at least some of the contacting surfaces in that region. The method has particular application to the bonding of a layer of diamond to a frame or mount.
    Type: Application
    Filed: January 12, 2005
    Publication date: November 29, 2007
    Inventors: Andrew Whitehead, Bartholomeus Van Oerle, Christopher Wort, Thomas Schaich
  • Publication number: 20070148079
    Abstract: A layer of single crystal CVD diamond of high quality having a thickness greater than 2 mm. Also provided is a method of producing such a CVD diamond layer.
    Type: Application
    Filed: July 14, 2006
    Publication date: June 28, 2007
    Inventors: Geoffrey Scarsbrook, Philip Martineau, Barbel Dorn, Michael Cooper, John Collins, Andrew Whitehead, Daniel Twitchen, Ricardo Sussmann
  • Publication number: 20070092647
    Abstract: A layer of single crystal boron doped diamond produced by CVD and having a total boron concentration which is uniform. The layer is formed from a single growth sector, or has a thickness exceeding 100 ?m, or has a volume exceeding 1 mm3, or a combination of such characteristics.
    Type: Application
    Filed: December 1, 2006
    Publication date: April 26, 2007
    Inventors: Geoffrey Scarsbrook, Philip Martineau, Daniel Twitchen, Andrew Whitehead, Michael Cooper, Barbel Dorn
  • Publication number: 20060071169
    Abstract: A method of detecting radiation that includes providing a layer of high purity single crystal CVD diamond, applying an electric field of no greater than 0.5 V/?m to the layer, exposing the layer to the radiation thereby generating a signal, and detecting the signal.
    Type: Application
    Filed: September 4, 2003
    Publication date: April 6, 2006
    Inventors: Andrew Whitehead, Geoffrey Scarsbrook, Daniel Twitchen
  • Publication number: 20050222178
    Abstract: The present invention relates to an improved process for the preparation of heterocyclyl substituted adenosine derivatives. More particularly the invention is concerned with preparation of particular physical forms of (2S, 3S, 4R, 5R)-2-(5 tert-butyl-[1,3,4]oxadiazol-2-yl)-5-[6-(4-chloro-2-fluoro-phenylamino)-9H-purin-9-yl]tetrahydro-furan-3, 4-diol.
    Type: Application
    Filed: June 16, 2003
    Publication date: October 6, 2005
    Inventors: Mark Shipton, Neil Smith, Andrew Whitehead, Marian Wood-Kaczmar
  • Publication number: 20050118349
    Abstract: A process of making a product which comprises at least two layers in contact with each other, each layer being of a wide-gap material and each layer differing from each other in at least one property, includes the steps of: (i) providing a substrate of a wide-band gap material having a surface and a region adjacent the surface having a particular characteristic, (ii) ion implanting the substrate through the surface to form a damaged layer below that surface, (iii) growing a layer of a wide-band gap material by chemical vapour deposition on at least a portion of the surface of the substrate through which ion implantation occurred, the material of the grown layer having a characteristic different to that of the region of the substrate adjacent the surface through which ion implantation occurred, and (iv) severing the substrate through the damaged layer. The wide-gap material is preferably diamond.
    Type: Application
    Filed: November 12, 2002
    Publication date: June 2, 2005
    Inventors: Andrew Whitehead, Daniel Twitchen, Geoffrey Scarsbrook