Patents by Inventor Cornelius Marsden Vanderwaart

Cornelius Marsden Vanderwaart 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).

  • Continuous adiabatic process for the mononitration of benzene
    Patent number: 4091042
    Abstract: Benzene is admixed and reacted continuously with a mixed acid containing 3-7.5% nitric acid, 58.5-66.5% sulfuric acid, and 28-37% water under pressure sufficient to maintain benzene in liquid state until complete conversion of nitric acid is achieved to provide mononitrobenzene containing less than 500 ppm dinitrobenzene.
    Type: Grant
    Filed: August 19, 1977
    Date of Patent: May 23, 1978
    Assignee: American Cyanamid Company
    Inventors: Verner Alexanderson, James Bryan Trecek, Cornelius Marsden Vanderwaart
  • Adiabatic process for nitration of nitratable aromatic compounds
    Patent number: 4021498
    Abstract: An adiabatic process for the mononitration of nitratable aromatic hydrocarbons and halo substituted aromatic hydrocarbons which yield a mononitration product containing less than 500 ppm. of dinitrated product is disclosed.
    Type: Grant
    Filed: December 9, 1975
    Date of Patent: May 3, 1977
    Assignee: American Cyanamid Company
    Inventors: Verner Alexanderson, James Bryant Trecek, Cornelius Marsden Vanderwaart