Patents by Inventor James F. Sturnfield

James F. Sturnfield 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).

  • High-output solvent-based electrospinning
    Patent number: 8584871
    Abstract: The present invention generally relates to solution electrospinning processes for fabricating fibers, to the fibers prepared thereby, and to non-woven webs, fabrics, porous composite filter media, and articles comprising the fibers.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: November 19, 2013
    Inventors: Joey W. Storer, James F. Sturnfield, Leonardo C. Lopez, Rudolf J. Koopmans, Rene Broos, Wu Chen, Gerrit J. Brands
  • Process for producing micron and submicron fibers and nonwoven webs by melt blowing
    Patent number: 8206484
    Abstract: This invention is a method for fabricating fibers by melt-blowing a melt of a molecularly self-assembling material, the melt being at a temperature of from 130° C. to 220° C., thereby forming a fiber set having a distribution of fiber diameters wherein at least 95% of the fibers have a diameter of less than about 3 microns. The invention further comprises collecting the fiber set so as to form a fibrous non-woven web.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: June 26, 2012
    Inventors: Gert Claasen, Gerrit J. Brands, Leonardo C. Lopez, Rene Broos, Thomas Allgeuer, Wu Chen, James F. Sturnfield
  • EFFICIENCY-ENHANCED GAS FILTER MEDIUM
    Publication number: 20110308386
    Abstract: The present invention generally relates to an efficiency-enhanced gas filter medium comprising at least two fiber layers comprising a combination of two or more electrostatically-interacting fiber layers such that the efficiency-enhanced gas filter medium is characterizable by a gas filtration efficiency enhancement from the combination of the two or more electrostatically-interacting fiber layers, and related manufactured articles, processes and methods.
    Type: Application
    Filed: May 13, 2011
    Publication date: December 22, 2011
    Inventors: Jerome Claracq, James F. Sturnfield, Peter Cate, Wu Chen, Leonardo C. Lopez
  • HIGH-OUTPUT SOLVENT-BASED ELECTROSPINNING
    Publication number: 20100200494
    Abstract: The present invention generally relates to solution electrospinning processes for fabricating fibers, to the fibers prepared thereby, and to non-woven webs, fabrics, porous composite filter media, and articles comprising the fibers.
    Type: Application
    Filed: May 30, 2008
    Publication date: August 12, 2010
    Applicant: DOW GLOBAL TECHNOLOGIES INC.
    Inventors: Joey W. Storer, James F. Sturnfield, Leonardo C. Lope, Rudolf J. Koopmans, Rene Broos, Wu Chen, Gerrit J. Brands
  • POLYMER OR OLIGOMER FIBERS BY SOLVENT-FREE ELECTROSPINNING
    Publication number: 20100064647
    Abstract: A process for fabricating fibers, including nano-scale fibers, comprising electrospinning a melt of a self assembling material and fibers fabricated by the process are disclosed.
    Type: Application
    Filed: February 14, 2008
    Publication date: March 18, 2010
    Inventors: Gerrit J. Brands, Rene Broos, Rudolf J. Koopmans, Joey W. Storer, Leonardo C. Lopez, James F. Sturnfield
  • PROCESS FOR PRODUCING MICRON AND SUBMICRON FIBERS AND NONWOVEN WEBS BY MELT BLOWING
    Publication number: 20100037576
    Abstract: This invention is a method for fabricating fibers by melt-blowing a melt of a molecularly self-assembling material, the melt being at a temperature of from 130° C. to 220° C., thereby forming a fiber set having a distribution of fiber diameters wherein at least 95% of the fibers have a diameter of less than about 3 microns. The invention further comprises collecting the fiber set so as to form a fibrous non-woven web.
    Type: Application
    Filed: August 12, 2009
    Publication date: February 18, 2010
    Inventors: Gert Claasen, Gerrit J. Brands, Leonardo C. Lopez, Rene Broos, Thomas Allgeuer, Wu Chen, James F. Sturnfield