Patents by Inventor Long-Ping Yuan

Long-Ping Yuan 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).

  • Hybrid rice
    Patent number: 4827664
    Abstract: Methods for the production of seed for growing hybrid rice comprising the planting of rows of male parent seed interspersed with rows of female seed, synchronization of heading and pollination.
    Type: Grant
    Filed: April 27, 1988
    Date of Patent: May 9, 1989
    Assignee: China National Seed Corporation
    Inventor: Long-Ping Yuan
  • Hybrid rice
    Patent number: 4305225
    Abstract: Methods for the production of seed for growing hybrid rice comprising the planting of rows of male parent seed interspersed with rows of female seed, synchronization of heading and pollination.
    Type: Grant
    Filed: June 3, 1980
    Date of Patent: December 15, 1981
    Assignee: China National Seed Corporation
    Inventor: Long-Ping Yuan