Patents by Inventor Lane C. Sander

Lane C. Sander 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).

  • Covalently immobilized fluorinated carboxylic acid stationary phase for liquid chromatography
    Patent number: 7794837
    Abstract: A stationary phase for a liquid chromatograph and process for making is provided. The stationary phase material may have a modified base substrate and a fluorinated carboxylic acid covalently bonded thereto through an amide or ester bond. The stationary phase may have a substantially consistent shape selectivity characteristic with an ?TBN/BaP of less than 1 within a temperature range of at least 10-70° C. Advantageously, a fluorinated stationary phase has a shape selectivity characteristic exhibited with an ?TBN/BaP of less than 1 with a mobile phase having up to at least 30% water. A process for making the stationary involves mixing a substrate material or fluorinated carboxylic acid with a reactive alkylsilane linker and at least one organic solvent to form a first solution. The other of the substrate material or fluorinated carboxylic acid is then added to the first solution, or to a product separated from the first solution, to form a second solution.
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: September 14, 2010
    Assignee: The United States of America as represented by the Secretary of Commerce, The National Institute of Standards and Technology
    Inventors: Katrice A. Lippa, Catherine A. Rimmer, Lane C. Sander
  • Covalently Immobilized Fluorinated Carboxylic Acid Stationary Phase For Liquid Chromatography
    Publication number: 20090043042
    Abstract: A stationary phase for a liquid chromatograph and process for making is provided. The stationary phase material may have a modified base substrate and a fluorinated carboxylic acid covalently bonded thereto through an amide or ester bond. The stationary phase may have a substantially consistent shape selectivity characteristic with an ?TBN/BaP of less than 1 within a temperature range of at least 10-70° C. Advantageously, a fluorinated stationary phase has a shape selectivity characteristic exhibited with an ?TBN/BaP of less than 1 with a mobile phase having up to at least 30% water. A process for making the stationary involves mixing a substrate material or fluorinated carboxylic acid with a reactive alkylsilane linker and at least one organic solvent to form a first solution. The other of the substrate material or fluorinated carboxylic acid is then added to the first solution, or to a product separated from the first solution, to form a second solution.
    Type: Application
    Filed: August 6, 2008
    Publication date: February 12, 2009
    Inventors: Katrice A. Lippa, Catherine A. Rimmer, Lane C. Sander