Patents by Inventor Russell R. Peterson

Russell R. Peterson 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).

  • Method of recovering 3,6-dichloropicolinic acid from basic aqueous solutions of salts thereof
    Patent number: 4334074
    Abstract: 3,6-Dichloropicolinic acid, a highly active plant growth regulator, is recovered from basic, aqueous solutions thereof by acidification with HCl in the presence of a flocculant, separating the precipitated 3,6-dichloroacid, extracting the unprecipitated acid from the mother liquor with a solvent and stripping the extracted acid from the solvent with another portion of the basic, aqueous feed solution.
    Type: Grant
    Filed: February 2, 1981
    Date of Patent: June 8, 1982
    Assignee: The Dow Chemical Company
    Inventor: Russell R. Peterson