Patents by Inventor Andrew S. Wang

Andrew S. Wang 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).

  • Process for regenerating corn
    Patent number: 4843005
    Abstract: The invention is directed to a process for regenerating plants from corn tissue. The process comprises the steps of in vitro conditioning of the corn tissue, culturing the corn tissue on a callus induction medium to induce callus, and regenerating plants from the callus. The callus may optionally be maintained prior to regeneration and the plants may optionally be cultured on an establishment medium prior to transfer to the soil.
    Type: Grant
    Filed: August 18, 1986
    Date of Patent: June 27, 1989
    Assignee: Sungene Technologies Corporation
    Inventors: David S. K. Cheng, Andrew S. Wang
  • Process for regenerating corn
    Patent number: 4806483
    Abstract: The invention is directed to a process for regenerating plants from mature corn embryos. The process comprises the steps of culturing the mature embryo on a callus induction medium to induce callus, subculturing the callus on a maintenance medium to maintain the callus, and subculturing the maintained callus on a regeneration medium to produce plants.
    Type: Grant
    Filed: August 18, 1986
    Date of Patent: February 21, 1989
    Assignee: Sungene Technologies Corporation
    Inventor: Andrew S. Wang