Patents by Inventor Michael L. Christianson

Michael L. Christianson 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).

  • Plantlet generation by cell culture
    Patent number: 4548901
    Abstract: Plantlet generation by cell culture wherein a morphogenetically competent cell suspension culture is prepared which can be maintained by serial subculture. Transfer of aggregates of the suspension culture to an expression medium produces, after a few days, well formed bipolar embryoids which undergo shoot development and subsequent rooting to complete plantlet development.
    Type: Grant
    Filed: June 21, 1983
    Date of Patent: October 22, 1985
    Assignee: Zoecon Corporation
    Inventors: Michael L. Christianson, Debra A. Warnick, Peter S. Carlson