Patents by Inventor Somanahalli Naranappa Subbanna

Somanahalli Naranappa Subbanna 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).

  • Purification of hydrogen fluoride
    Publication number: 20010022957
    Abstract: A process for purifying anhydrous HF by contacting anhydrous HF containing phosphate impurities with an effective amount of activated carbon so that the phosphate impurities are adsorbed on the activated carbon, and anhydrous hydrogen fluoride having a reduced phosphate impurity content is obtained.
    Type: Application
    Filed: December 19, 2000
    Publication date: September 20, 2001
    Inventors: Somanahalli Naranappa Subbanna, Charles Lewis Redmon, Robert Andrew Smith, Paul Frederick Kunkel