Patents by Inventor Helen D. Dernar

Helen D. Dernar 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).

  • Photochemical decarboxylation of a metal salt of an alpha-hydroxy carboxylic acid
    Patent number: 4450059
    Abstract: A process is provided for the photochemical decarboxylation of a metal salt of an alpha-hydroxy carboxylic acid to form the corresponding alcohol wherein the alpha-hydroxy carboxylic acid metal salt is exposed to light in the absence of a photosensitizing agent.
    Type: Grant
    Filed: September 2, 1983
    Date of Patent: May 22, 1984
    Assignee: The Standard Oil Company
    Inventors: Abolghassem Eskamani, Helen D. Dernar, Rosemary Bartoszek-Loza
  • Electrochemical conversion of biomass
    Patent number: 4341609
    Abstract: A process for converting plant biomass to its constituent parts of lignin, cellulose and hemicellulose and further derivatives comprises treating the biomass in the anodic section of an electrochemical cell in the presence of an electrolyte solution. The rate of enzymatic cellulose hydrolysis of treated biomass is enhanced.
    Type: Grant
    Filed: February 26, 1981
    Date of Patent: July 27, 1982
    Assignee: The Standard Oil Company
    Inventors: Abolghassem Eskamani, Helen D. Dernar