Patents by Inventor Paul Wan Sia Heng

Paul Wan Sia Heng 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).

  • Apparatus and method for visiometric disintegration
    Patent number: 9534997
    Abstract: In one version of the invention, an apparatus intended for determining the disintegration time of rapidly disintegrating tablets is designed with a disintegration cell having two liquid inlets and outflow from the top. Visualization of tablet inside the disintegration cell is conducted using a camera aided by a base light source and images captured using a computer or any other recording system. Disintegration medium is introduced into the disintegration cell through both inlets to produce a swirling motion and images of the tablet disintegration process are captured. The captured images are analyzed in real-time or off-line, to determine the tablet disintegration time. A visual non-recording method using projected image may also be used.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: January 3, 2017
    Assignee: National University of Singapore
    Inventors: Paul Wan Sia Heng, Parind Mahendrakumar Desai, Celine Valeria Liew
  • APPARATUS AND METHOD FOR VISIOMETRIC DISINTEGRATION
    Publication number: 20140305225
    Abstract: In one version of the invention, an apparatus intended for determining the disintegration time of rapidly disintegrating tablets is designed with a disintegration cell having two liquid inlets and outflow from the top. Visualization of tablet inside the disintegration cell is conducted using a camera aided by a base light source and images captured using a computer or any other recording system. Disintegration medium is introduced into the disintegration cell through both inlets to produce a swirling motion and images of the tablet disintegration process are captured. The captured images are analyzed in real-time or off-line, to determine the tablet disintegration time. A visual non-recording method using projected image may also be used.
    Type: Application
    Filed: April 10, 2014
    Publication date: October 16, 2014
    Applicant: National University of Singapore
    Inventors: Paul Wan Sia Heng, Parind Mahendrakumar Desai, Celine Valeria Liew
  • Meltable Binder for Melt Granulation and/or Pelletization
    Publication number: 20100104656
    Abstract: A low melting binder composition for preparation of pharmaceutical tablets and/or granules which comprises a polymer and a hydrophobic meltable binder.
    Type: Application
    Filed: March 19, 2008
    Publication date: April 29, 2010
    Inventors: Paul Wan Sia Heng, Wai See Cheong, Zhi Hui Loh, Dipan B. Ray, Rama Haldar, Yolande Anthony