Patents by Inventor Nazir A. Khan

Nazir A. Khan 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).

  • Multi-Colour Printing
    Publication number: 20080286483
    Abstract: A method for forming an image on a substrate, which comprises applying to the substrate a combination of a diacetylene and a photoacid or photobase, and polymerising the diacetylene by radiation, is provided. The method finds use in multi-colour printing.
    Type: Application
    Filed: August 17, 2005
    Publication date: November 20, 2008
    Applicant: SHERWOOD TECHNOLOGY LTD.
    Inventors: Nazir Khan, Christopher Anthony Wyres
  • Laser-markable compositions
    Publication number: 20060147842
    Abstract: A laser-markable composition comprises a binder and an oxyanion of a multivalent metal.
    Type: Application
    Filed: February 28, 2006
    Publication date: July 6, 2006
    Inventor: Nazir Khan
  • Laser coding
    Publication number: 20050269304
    Abstract: A method for marking an object, wherein the object comprises a material including a functional group and a metal compound or acid that causes an elimination reaction on irradiation with a laser, to form a reaction product of contrasting colour, comprises directing a laser beam on to the areas of the object to be marked For example, by using a carbohydrate and a metal salt, effective marking can be achieved on the coating of a pill or other edible material.
    Type: Application
    Filed: May 31, 2005
    Publication date: December 8, 2005
    Inventors: Nazir Khan, Brian Stubbs, Joseph Gaunt
  • Hybrid arteriovenous shunt
    Publication number: 20050215938
    Abstract: An apparatus for positioning a graft and catheter operable for subcutaneous access to the vascular system of a patient. A surgically created, hybrid arteriovenous shunt is provided which comprises a flexible graft and a venous outflow catheter connected to the graft via surgical anastomosis over a cuff. The graft is connected to an arterial source and then to a single lumen venous outflow catheter which deposits dialyzed blood directly into the heart at the right atrium. Methods of surgical placement and performing hemodialysis using embodiments of the apparatus are provided.
    Type: Application
    Filed: March 29, 2004
    Publication date: September 29, 2005
    Inventors: Iftikhar Khan, Nazir Khan
  • Laser coding
    Publication number: 20050186511
    Abstract: A method for marking an object, wherein the object comprises a material including a functional group and a metal compound or acid that causes an elimination reaction on irradiation with a laser, to form a reaction product of contrasting colour, comprises directing a laser beam on to the areas of the object to be marked. For example, by using a carbohydrate and a metal salt, effective marking can be achieved on the coating of a pill or other edible material.
    Type: Application
    Filed: March 31, 2005
    Publication date: August 25, 2005
    Inventor: Nazir Khan
  • Laser coding
    Patent number: 6888095
    Abstract: A method for making an object, wherein the object comprises a material including a functional group and a metal compound or acid that causes an elimination reaction on irradiation with a laser, to form a reaction product of contrasting colour, comprises directing a laser beam on to the areas of the object to be marked. For example, by using a carbohydrate and a metal salt, effective marking can be achieved on the coating of a pill or other edible material.
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: May 3, 2005
    Assignee: Sherwood Technology, Inc.
    Inventor: Nazir Khan
  • Laser-markable compositions
    Publication number: 20050032957
    Abstract: A laser-markable composition which comprises a binder and an oxyanion of a multivalent metal.
    Type: Application
    Filed: July 26, 2004
    Publication date: February 10, 2005
    Inventors: Nazir Khan, Martin Walker
  • Laser coding
    Publication number: 20030186001
    Abstract: A method for marking an object, wherein the object comprises a material including a functional group and a metal compound or acid that causes an elimination reaction on irradiation with a laser, to form a reaction product of contrasting colour, comprises directing a laser beam on to the areas of the object to be marked. For example, by using a carbohydrate and a metal salt, effective marking can be achieved on the coating of a pill or other edible material.
    Type: Application
    Filed: February 10, 2003
    Publication date: October 2, 2003
    Inventor: Nazir Khan
  • Laser-markable compositions
    Publication number: 20030180660
    Abstract: A laser-markable composition comprises a binder and an oxyanion of a multivalent metal.
    Type: Application
    Filed: March 14, 2003
    Publication date: September 25, 2003
    Inventor: Nazir Khan