Patents by Inventor J. Clifton DeLozier

J. Clifton DeLozier 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).

  • ASYMMETRIC MEMBRANES AND RELATED METHODS
    Publication number: 20180272290
    Abstract: Microporous polymer membranes and related methods of fabrication are provided. An asymmetric microporous membrane embodiment includes, but is not limited to, a thermoplastic polymer substrate defining a plurality of micropores, the thermoplastic polymer including one or more of polyethylene (PE), polypropylene (PP), polymethylpentene (PMP), and a combination thereof; and a polymethylpentene (PMP) polymer skin positioned on the thermoplastic polymer substrate, wherein when the thermoplastic polymer substrate includes PMP, the PMP polymer skin has a crystallinity that differs from a crystallinity of the PMP in the polymer substrate.
    Type: Application
    Filed: June 1, 2018
    Publication date: September 27, 2018
    Inventors: Kwantai Cho, J. Clifton DeLozier
  • Asymmetric membranes and related methods
    Patent number: 10010835
    Abstract: Microporous polymer membranes and related methods of fabrication are provided. An asymmetric microporous membrane embodiment includes, but is not limited to, a thermoplastic polymer substrate defining a plurality of micropores, the thermoplastic polymer including one or more of polyethylene (PE), polypropylene (PP), polymethylpentene (PMP), and a combination thereof; and a polymethylpentene (PMP) polymer skin positioned on the thermoplastic polymer substrate, wherein when the thermoplastic polymer substrate includes PMP, the PMP polymer skin has a crystallinity that differs from a crystallinity of the PMP in the polymer substrate.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: July 3, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: Kwantai Cho, J. Clifton DeLozier
  • ASYMMETRIC MEMBRANES AND RELATED METHODS
    Publication number: 20150258500
    Abstract: Microporous polymer membranes and related methods of fabrication are provided. An asymmetric microporous membrane embodiment includes, but is not limited to, a thermoplastic polymer substrate defining a plurality of micropores, the thermoplastic polymer including one or more of polyethylene (PE), polypropylene (PP), polymethylpentene (PMP), and a combination thereof; and a polymethylpentene (PMP) polymer skin positioned on the thermoplastic polymer substrate, wherein when the thermoplastic polymer substrate includes PMP, the PMP polymer skin has a crystallinity that differs from a crystallinity of the PMP in the polymer substrate.
    Type: Application
    Filed: March 12, 2015
    Publication date: September 17, 2015
    Inventors: Kwantai Cho, J. Clifton DeLozier