Patents by Inventor John M. Layman

John M. Layman 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).

  • Publication number: 20080213574
    Abstract: The present invention relates to the fields of chemistry and biology and more particularly to the field of biomaterials. The present invention includes amphiphilic fibers and membranes, which can be used for biomembranes and biocompatible devices. The present invention also relates to processes for preparing amphiphilic fibers and membranes from solutions comprising amphiphilic molecules. More particularly, the present invention relates to processes for preparing fibers and membranes from electrospinning solutions comprising amphiphilic molecules. The present invention further provides fibers and nonwoven membranes comprising amphiphilic fibers chosen from anionic surfactants, cationic surfactants, nonionic surfactants, phospholipids, sulfobetaines, lyotropic liquid crystalline molecules, and/or block copolymers.
    Type: Application
    Filed: July 31, 2007
    Publication date: September 4, 2008
    Inventors: Matthew G. McKee, John M. Layman, Matthew T. Hunley, Matthew P. Cashion, Timothy E. Long
  • Publication number: 20040018226
    Abstract: The invention is directed to novel compositions comprising an electroprocessed material and a substance, their formation and use. The electroprocessed material can, for example, be one or more natural materials, one or more synthetic materials, or a combination thereof. The substance can be one or more therapeutic or cosmetic substances or other compounds, molecules, cells, vesicles. The compositions can be used in substance delivery, including drug delivery within an organism by, for example, releasing substances or containing cells that release substances. The compositions can be used for other purposes, such as prostheses or similar implants.
    Type: Application
    Filed: April 7, 2003
    Publication date: January 29, 2004
    Inventors: Gary E. Wnek, David G. Simpson, Gary L. Bowlin, Li Yao, El-Rafaie Kenawy, John M. Layman, Elliott H. Sanders, John Fenn
  • Publication number: 20030215624
    Abstract: Electrospinning of EVOH copolymer fiber is accomplished by dissolving the copolymers in a 2-propanol/water solution. The mixture is heated until the EVOH copolymers are fully dissolved in the solution. The copolymers fibers are then electrospun after the mixture is allowed to cool. Additionally, fully hydrolyzed PVA was able to be electrospun through use of a non-ionic surfactant. This electrospun matrix can be stabilized against disintegration and water by soaking of the matrix in methanol.
    Type: Application
    Filed: April 4, 2003
    Publication date: November 20, 2003
    Inventors: John M. Layman, Gary Wnek, El-Refaie Kenawy