Patents by Inventor Andrew Douglas Mackenzie

Andrew Douglas Mackenzie 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).

  • Extraction of highly unsaturated lipids with liquid dimethyl ether
    Patent number: 8383845
    Abstract: A process for obtaining lipids containing highly unsaturated fatty acids from plant or animal material, including contacting the material with liquid dimethyl ether to give a dimethyl ether solution containing lipids and a residue of plant or animal material, separating the solution from the residue of plant or animal material, and recovering lipids from the solution.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: February 26, 2013
    Assignee: Industrial Research Limited
    Inventors: Owen John Catchpole, John Bertram Grey, Andrew Douglas MacKenzie, Stephen John Tallon
  • EXTRACTION OF HIGHLY UNSATURATED LIPIDS WITH LIQUID DIMETHYL ETHER
    Publication number: 20100160659
    Abstract: A process for obtaining lipids containing highly unsaturated fatty acids from plant or animal material, including contacting the material with liquid dimethyl ether to give a dimethyl ether solution containing lipids and a residue of plant or animal material, separating the solution from the residue of plant or animal material, and recovering lipids from the solution.
    Type: Application
    Filed: May 24, 2007
    Publication date: June 24, 2010
    Inventors: Owen John Catchpole, John Bertram Grey, Andrew Douglas MacKenzie, Stephen John Tallon
  • Separation technology
    Patent number: 7709668
    Abstract: A process for extracting a wide range of lipophilic compounds from urea-containing solutions is described. The process utilises a near-critical fluid as the extraction solvent. The process is particularly applicable to the extraction of polyunsaturated fatty acids from the filtrate obtained upon urea fractionation, as employed in the processing of fish and other oils. In contrast to known processes, the lipophilic compounds may be extracted without the use of non-food grade solvents, and are suitable for pharmaceutical and cosmetic use.
    Type: Grant
    Filed: April 11, 2003
    Date of Patent: May 4, 2010
    Assignee: Industrial Research Limited
    Inventors: Owen John Catchpole, Andrew Douglas Mackenzie, John Bertram Grey
  • Shark meat extract
    Publication number: 20040009233
    Abstract: An extract obtained from shark meat, which extract is capable of inhibiting angiogenesis in an animal. A process for obtaining the extract by contacting shark meat with a solvent, separating the resulting solution from the meat, then removing the solvent to give an extract which is an inhibitor of angiogenesis. The use of the extract for treatment of diseases associated with angiogenesis including cancer, retinopathy, inflammation, and arthritis.
    Type: Application
    Filed: July 25, 2003
    Publication date: January 15, 2004
    Inventors: Paul Frank Davis, Andrew Douglas Mackenzie