Patents Represented by Attorney, Agent or Law Firm Randall W. C. Chang
  • Retinoblastoma-like RRB gene of arabidopsis thaliana
    Patent number: 6696560
    Abstract: This invention provides methods and compositions for altering the growth, organization, and differentiation of plant tissues. The invention is based on the discovery that, in plants, genetically altering the levels of Retinoblastoma-related gene (RRB) activity produces dramatic effects on the growth, proliferation, organization, and differentiation of plant meristem.
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: February 24, 2004
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Tim Durfee, Heidi Feiler, Wilhelm Gruissem, Susan Jenkins, Judith Roe, Patricia Zambryski
  • Bi-stable optical actuator
    Patent number: 6144506
    Abstract: The present invention is a bi-stable optical actuator device that is depowered in both stable positions. A bearing is used to transfer motion and smoothly transition from one state to another. The optical actuator device may be maintained in a stable position either by gravity or a restraining device.
    Type: Grant
    Filed: October 15, 1999
    Date of Patent: November 7, 2000
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Fred R. Holdener, Robert D. Boyd