Patents by Inventor Barry W. Himes

Barry W. Himes 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).

  • Method of purification of acetonitrile
    Patent number: 5426208
    Abstract: Acetonitrile is purified by treatment with ozone. After ozone treatment is ended, acetonitrile is passed through packed columns of molecular sieve, activated alumina and charcoal or graphitized carbon; the process results in virtually pure acetonitrile obtained at an efficiency unachievable by prior art processes.
    Type: Grant
    Filed: November 19, 1993
    Date of Patent: June 20, 1995
    Assignee: Cryodyne Technologies, Inc.
    Inventors: Barry W. Himes, R. Clive Greenough
  • Method for purification of acetonitrile
    Patent number: 5292919
    Abstract: Acetonitrile is purified by treatment with ozone. After ozone treatment is ended, acetonitrile is passed through packed columns of molecular sieve, activated alumina and charcoal or graphitized carbon; the process results in virtually pure acetonitrile obtained at an efficiency unachievable by prior art processes.
    Type: Grant
    Filed: May 21, 1993
    Date of Patent: March 8, 1994
    Assignee: Cryodyne Technologies, Inc.
    Inventors: Barry W. Himes, R. Clive Greenough