Patents by Inventor Madhusudan Dattatraya Jayawant

Madhusudan Dattatraya Jayawant 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).

  • Patent number: 4083941
    Abstract: A process for preparing very high purity anhydrous hydrogen fluoride by contacting anhydrous hydrogen fluoride with at least 2.3% by weight of persulfuric acid based on the anhydrous hydrogen fluoride or at least 0.7% by weight of hydrogen peroxide based on the anhydrous hydrogen fluoride at ambient temperature and either at least 0.6% by weight of methanol based on the anhydrous hydrogen fluoride or at least one mole of sulfuric acid per mole of hydrogen peroxide at a temperature of from 0.degree. to 75.degree. C and distilling the resulting mixture to recover very high purity anhydrous hydrogen fluoride.
    Type: Grant
    Filed: April 18, 1977
    Date of Patent: April 11, 1978
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Madhusudan Dattatraya Jayawant, Geoffrey Walsh Meadows