Patents by Inventor John Douglas McKenzie

John Douglas McKenzie 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).

  • Method for determining the toxicity of an environmental or chemical sample
    Patent number: 8551921
    Abstract: An indicator device, and a biological test method, for determining the toxic fingerprint and degree of toxicity, comprising at least 3, preferably at least 11, different microorganisms freeze-dried on an inert support material, wherein the microorganisms are being selected to form a high diversity of microorganisms, on the support material, with regards to the taxonomical tree and high diversity regarding responses to toxic chemicals. Further, a kit and a process for producing the indicator device is also disclosed.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: October 8, 2013
    Assignee: Phplate Stockholm AB
    Inventors: Inger Kuhn, Patricia Colque-Navarro, Jenny Gabrielson, Aina Iversen, John Douglas McKenzie, Mark Christopher Hart
  • METHOD AND DEVICE
    Publication number: 20080200346
    Abstract: An indicator device, and a biological test method, for determining the toxic fingerprint and degree of toxicity, comprising at least 3, preferably at least 11, different microorganisms freeze-dried on an inert support material, wherein the microorganisms are being selected to form a high diversity of microorganisms, on the support material, with regards to the taxonomical tree and high diversity regarding responses to toxic chemicals. Further, a kit and a process for producing the indicator device is also disclosed.
    Type: Application
    Filed: February 11, 2008
    Publication date: August 21, 2008
    Applicant: PHPLATE STOCKHOLM AB
    Inventors: Inger KUHN, Patricia Colque-Navarro, Jenny Gabrielson, Aina Iversen, John Douglas McKenzie, Mark Christopher Hart
  • Product from starfish
    Patent number: 6991810
    Abstract: The invention relates to a product capable of having one or more properties sected from: anti-fouling properties, anti-adhesive properties, anti-inflammatory properties, and wherein said product is obtainable from starfish.
    Type: Grant
    Filed: June 8, 2000
    Date of Patent: January 31, 2006
    Assignee: King's College London
    Inventors: Michelle Marguerite Grundy, John Douglas McKenzie, Neville Vincent Richardson, Charles Daniel Bavington, Barbara Mulloy, Rebecca Lever, Clive Pete Page
  • Method and device
    Publication number: 20030186341
    Abstract: The present invention provides an indicator device, and a biological test method, for determining-the toxic fingerprint and degree of toxicity, comprising at least 3, preferably at least 11, different microorganisms freeze-dried on an inert support material, wherein the microorganisms are being selected to form a high diversity of microorganisms, on said support material, with regards to the taxonomical tree and high diversity regarding responses to toxic chemicals. Further, a kit and a process for producing the indicator device is also disclosed.
    Type: Application
    Filed: May 20, 2003
    Publication date: October 2, 2003
    Inventors: Inger Kuhn, Patricia Colque-Navarro, Jenny Gabrielson, Aina Iversen, John Douglas McKenzie, Mark Christopher Hart