Patents by Inventor Paul Frederick Kunkel

Paul Frederick Kunkel 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
  • Process for hydrogen fluoride separation
    Patent number: 5766483
    Abstract: A method for separating hydrogen fluoride from a chemical mixture is provided. In the process of the invention, hydrogen fluoride is separated from a chemical mixture containing hydrogen fluoride by contacting the chemical mixture with a hydrogen fluoride binder. The separated hydrogen fluoride may be recovered from the hydrogen fluoride binder.
    Type: Grant
    Filed: May 10, 1996
    Date of Patent: June 16, 1998
    Assignee: AlliedSignal Inc.
    Inventors: Mathew Hermes Luly, Jeffrey Warren Mckown, Robert Pratt, Rajiv Ratna Singh, Paul Frederick Kunkel, Charles Lewis Redmon, Hang Thanh Pham