Patents by Inventor Cherng-wen, Tan

Cherng-wen, Tan 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).

  • Methods and articles for the delivery of therapeutic agents
    Patent number: 8821859
    Abstract: Articles and methods for the delivery of drugs and/or nucleic acids. Articles including a nanoparticle are provided that may be used for the delivery of a drug, a nucleic acid, or both, to a subject. The articles may be of polymeric material and may self-assemble.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: September 2, 2014
    Assignee: Agency for Science, Technology and Research
    Inventors: Yi-Yan Yang, Yong Wang, Cherng-wen Tan, Jackie Y. Ying
  • Sustained-release tablet formulation
    Publication number: 20050220875
    Abstract: The invention provides a sustained-release tablet that can release caffeine and other xanthine derived stimulants at a nearly constant rate. The tablet comprises a hydrophilic polymer of high molecular weight and in one embodiment, the tablet includes caffeine and poly(ethylene oxide) of molecular weight of about 4×106 to 8×106. Sustained delivery of caffeine and other xanthine-derived stimulants is possible with a low concentration of the polymer and moreover, a wide range of concentration of caffeine and other stimulants can be released at a nearly constant rate.
    Type: Application
    Filed: March 31, 2004
    Publication date: October 6, 2005
    Inventors: Yi Yang, Cherng-wen, Tan, Shabbir Moochhala, Lishan Wang, Donna Tan