Patents by Inventor Charles Lofton

Charles Lofton 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).

  • Superficially porous metal oxide particles, methods for making them, and separation devices using them
    Patent number: 9284456
    Abstract: Superficially porous hybrid particles include hybrid solid cores that each contain an inorganic material and an organic material; and porous hybrid outer shells each include the inorganic and organic materials and having ordered pores, wherein the ordered pores have a median pore size ranges from about 15 to about 1000 ? with a pore size distribution (one standard deviation) of no more than 50% of the median pore size and produce at least one X-ray diffraction peak between 0.01° and 10° of a 2? scan range; wherein the particles have a median size range from about 0.5 ?m to about 100 ?m with a particle size distribution (one standard deviation) of no more than 15% of the median particle size, wherein the inorganic material comprises a metal oxide selected from silica, alumina, titania or zirconia.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: March 15, 2016
    Assignee: Agilent Technologies, Inc.
    Inventors: Charles Lofton, Ta-Chen Wei, William E Barber, Wu Chen
  • SUPERFICIALLY POROUS METAL OXIDE PARTICLES, METHODS FOR MAKING THEM, AND SEPARATION DEVICES USING THEM
    Publication number: 20130004772
    Abstract: Superficially porous hybrid particles include hybrid solid cores that each contain an inorganic material and an organic material; and porous hybrid outer shells each include the inorganic and organic materials and having ordered pores, wherein the ordered pores have a median pore size ranges from about 15 to about 1000 ? with a pore size distribution (one standard deviation) of no more than 50% of the median pore size and produce at least one X-ray diffraction peak between 0.01° and 10° of a 2? scan range; wherein the particles have a median size range from about 0.5 ?m to about 100 ?m with a particle size distribution (one standard deviation) of no more than 15% of the median particle size, wherein the inorganic material comprises a metal oxide selected from silica, alumina, titania or zirconia.
    Type: Application
    Filed: September 13, 2012
    Publication date: January 3, 2013
    Applicant: AGILENT TECHNOLOGIES, INC.
    Inventors: Charles Lofton, Ta-Chen Wei, William E. Barber, Wu Chen