Patents by Inventor David M Tsai

David M Tsai 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).

  • Plant extract that inhibits the release of Tumor Necrosis Factor alpha (TNF-alpha)
    Publication number: 20020187208
    Abstract: An extract from the Melothria Indica Lou plant, which has the effect of inhibiting the release of cytokines, including Tumor Necrosis Factor-alpha, by immune response cells, such as macrophages, for the therapeutic treatment of sepsis.
    Type: Application
    Filed: March 4, 2002
    Publication date: December 12, 2002
    Applicant: Ambryx Biotechnology, Inc.
    Inventor: David M. Tsai
  • Plant extract that inhibits the release of tumor necrosis factor alpha (TNF-alpha)
    Patent number: 6352729
    Abstract: An extract from the Melothria Indica Lou plant, which has the effect of inhibiting the release of cytokines, including Tumor Necrosis Factor-alpha, by immune response cells, such as macrophages, for the therapeutic treatment of sepsis.
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: March 5, 2002
    Assignee: Ambryx Biotechnology, Inc.
    Inventor: David M Tsai
  • Remote control animal collar
    Patent number: 4919082
    Abstract: An animal training collar is described which is remotely controlled so that pressure can be applied to the neck of the animal from a remote location by the master. The collar contains a radio receiver and elements for applying pressure to the animal's neck on receipt of the appropriate signal from a transmitter.
    Type: Grant
    Filed: November 22, 1988
    Date of Patent: April 24, 1990
    Inventor: David M. Tsai
  • Remote control animal collar
    Patent number: 4898119
    Abstract: An animal training collar is described which is remotely controlled so that the collar can be tightened or released from a remote location by the master. The collar contains a small electric motor, power source, radio receiver and clutch mechanism for transmitting rotational force to a capstan which winds in leads attached to the collar on receipt of the appropriate signal from a transmitter.
    Type: Grant
    Filed: August 11, 1988
    Date of Patent: February 6, 1990
    Inventor: David M. Tsai