Patents by Inventor Piera S. Sun

Piera S. Sun 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).

  • Method for direct nucleic acid uptake
    Patent number: 7115794
    Abstract: The present invention relates to a method of nucleic acid molecule delivery into a fertilized egg. This method involves providing a fertilized egg prior to its formation of a protective layer, providing a nucleic acid molecule, and combining the nucleic acid molecule and the fertilized egg under conditions effective to allow the nucleic acid molecule to be delivered into the egg.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: October 3, 2006
    Assignee: University of Hawaii
    Inventor: Piera S. Sun
  • Method for direct nucleic acid uptake
    Publication number: 20040250308
    Abstract: The present invention relates to a method of nucleic acid molecule delivery into a fertilized egg. This method involves providing a fertilized egg prior to its formation of a protective layer, providing a nucleic acid molecule, and combining the nucleic acid molecule and the fertilized egg under conditions effective to allow the nucleic acid molecule to be delivered into the egg.
    Type: Application
    Filed: May 19, 2004
    Publication date: December 9, 2004
    Inventor: Piera S. Sun
  • Methods of isolating the androgenic sex hormone from crustacean prawn and marine shrimp and methods of use
    Patent number: 6740794
    Abstract: This work constitutes a novel approach and methodology, e.g., the in vitro secretion method to isolate the androgenic polypeptide hormone (AH) from the androgenic gland of shrimp or prawns. Alternatively, the AH can be obtained recombinantly by cloning and expressing the AH gene. The AH polypeptide is used to produce phenotypic males, neomales, from genotypic female shrimp or prawns. The neomales find use in the production of sex-skewed and monosex offspring when mated with wild-type female shrimp or prawns. From the sequence of the purified AH polypeptide, oligonucleotide probes are synthesized to clone the AH encoding nucleic acid which is used for recombinant AH polypeptide expression.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: May 25, 2004
    Assignee: University of Hawaii
    Inventors: Spencer R. Malecha, Piera S. Sun