Patents Assigned to The Hong Kong Polytechnic Univeristy
  • Method of mass production of tetrakis(p-nitrophenyl)porphyrins
    Patent number: 8901292
    Abstract: A method of mass production of tetrakis(p-nitrophenyl)porphyrins, by which successful isolation of the barely soluble product from meso-aryl nitration of tetraphenylporphyrin toward a remarkable yield of nearly 90% has been realized by means of a solid phase extraction technique. This is a simpler and more straight forward synthetic method, suitable production at an industrial scale with lower cost, shorter synthetic time and lower solvent consumption.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: December 2, 2014
    Assignee: The Hong Kong Polytechnic Univeristy
    Inventors: Kevin Ka Leung Cheuk, John Haozhong Xin, Priscilla Pui Sze Lee, Zhi Xue
  • Method of optical treatment
    Publication number: 20060082729
    Abstract: A method for treating progression of a refractive disorder in a human eye. The method includes the steps of producing a first image on a retina of the human eye and producing a second image to generate a defocus.
    Type: Application
    Filed: September 30, 2004
    Publication date: April 20, 2006
    Applicant: The Hong Kong Polytechnic Univeristy
    Inventors: Chi Ho To, Siu Lam, Yan Tse