Patents by Inventor Kevin D. John

Kevin D. John 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).

  • Quantitative method of determining beryllium or a compound thereof in a sample
    Patent number: 7781589
    Abstract: A method of determining beryllium or a beryllium compound thereof in a sample, includes providing a sample suspected of comprising beryllium or a compound thereof, extracting beryllium or a compound thereof from the sample by dissolving in a solution, adding a fluorescent indicator to the solution to thereby bind any beryllium or a compound thereof to the fluorescent indicator, and determining the presence or amount of any beryllium or a compound thereof in the sample by measuring fluorescence.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: August 24, 2010
    Assignee: Los Alamos National Security, LLC
    Inventors: T. Mark McCleskey, Deborah S. Ehler, Kevin D. John, Anthony K. Burrell, Gavin E. Collis, Edel M. Minogue, Benjamin P. Warner
  • Quantitative method of determining beryllium or a compound thereof in a sample
    Patent number: 7129093
    Abstract: A method of determining beryllium or a beryllium compound thereof in a sample, includes providing a sample suspected of comprising beryllium or a compound thereof, extracting beryllium or a compound thereof from the sample by dissolving in a solution, adding a fluorescent indicator to the solution to thereby bind any beryllium or a compound thereof to the fluorescent indicator, and determining the presence or amount of any beryllium or a compound thereof in the sample by measuring fluorescence.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: October 31, 2006
    Assignee: Los Alamos National Security, LLC
    Inventors: T. Mark McCleskey, Deborah S. Ehler, Kevin D. John, Anthony K. Burrell, Gavin E. Collis, Edel M. Minogue, Benjamin P. Warner