Patents by Inventor Ronald C. Haaseth

Ronald C. Haaseth 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).

  • Enkephalin analogs
    Patent number: 5326751
    Abstract: A new class of opioid receptor analogs is described based on an alanine substitution in the three position in the enkephalin analog DPDPE. The alanine-substituted analogs show increased selectivity for the delta type of opioid receptors over the mu type of receptors.
    Type: Grant
    Filed: June 26, 1992
    Date of Patent: July 5, 1994
    Assignee: Arizona Board of Regents on behalf of the University of Arizona
    Inventors: Ronald C. Haaseth, Victor J. Hruby