Patents by Inventor Susan E. Vilmer

Susan E. Vilmer 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).

  • Process for hydrolysis of ortho-aromatic di-aryl ethers
    Patent number: 4978811
    Abstract: Ortho-aromatic diaryl ethers, such as o-biphenylyl phenyl ether, are hydrolyzed to corresponding phenolic compounds, such as o-phenylphenol and phenol, when contacted with water in the presence of ceria or thoria at a temperature of between about 250.degree. C. and 700.degree. C.
    Type: Grant
    Filed: April 1, 1988
    Date of Patent: December 18, 1990
    Assignee: The Dow Chemical Company
    Inventors: Robert A. Koster, Philip J. Brondsema, Willis J. Pennington, William C. Sumner, Susan E. Vilmer