Patents by Inventor Edward F. Tatum

Edward F. Tatum 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).

  • Unsymmetrical alkylated diphenolic compounds
    Patent number: 4609767
    Abstract: 4-[[4-hydroxy-3-(1-methylpropyl)-5-lower alkylphenyl]-carbon bridge]-2,6-di-lower alkylphenols.The compounds of the invention such as 4-[[4-hydroxy-3,5-bis(1-methylpropyl)phenyl]methyl]-2,6-dimethylphenol have very low melting points, some being liquid at room temperature, and other physical and chemical properties making them valuable as curing agents and antioxidants and for preparing epoxy resins and other chemicals.
    Type: Grant
    Filed: September 12, 1985
    Date of Patent: September 2, 1986
    Assignee: Ethyl Corporation
    Inventors: Kju H. Shin, Edward F. Tatum
  • Unsymmetrical diphenolic compounds
    Patent number: 4554389
    Abstract: 4-[[4-hydroxy-3,5-bis(1-methylethyl)phenyl]hydrocarbyl]-2, 6-dimethylphenols.The compounds of the invention such as 4-[[4-hydroxy-3,5-bis(1-methylethyl)phenyl]hydrocarbyl]-2,6-dimethylphenol have low melting points and other physical and chemical properties making them valuable as curing agents, antioxidants, and for other purposes.
    Type: Grant
    Filed: April 9, 1984
    Date of Patent: November 19, 1985
    Assignee: Ethyl Corporation
    Inventors: Kju Hi Shin, Edward F. Tatum