Patents by Inventor Richard P. Levy

Richard P. Levy 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).

  • Biological implants of semipermeable amphiphilic membranes
    Patent number: 6200589
    Abstract: An implantable biological device including a semipermeable membrane formed into a geometric shape capable of encapsulating biological cells and capable of immunoisolating the biological cells upon introduction into the body, the semipermeable membrane including an amphiphilic copolymer network having hydrophobic segments and hydrophilic segments, wherein the hydrophobic segments include polyolefins terminated with radicals selected from the group consisting of acryloyl groups, methacryloyl groups and mixtures thereof and wherein the hydrophilic segments include polyacrylates. Also provided is a method of encapsulating and immunoisolating cells using the semipermeable membrane and method of treating ailments using the implantable biological device.
    Type: Grant
    Filed: February 27, 1998
    Date of Patent: March 13, 2001
    Assignee: The University of Akron
    Inventors: Joseph P. Kennedy, Shahram Shamlou, Richard P. Levy