Patents Assigned to Ellipsis Corporation
  • Micro and ultrafilters with controlled pore sizes and pore size distribution and methods for making
    Patent number: 6309546
    Abstract: A micro/ultrafiltering element (10) and method for making a filter element are provided. The filtering element comprises a multi-level support (26) having a filtering membrane layer (12) formed thereon comprising sintered particles (14) of uniform diameter. The filtering membrane preferably has an average pore size of from about 0.005-10 micrometers.
    Type: Grant
    Filed: July 8, 1999
    Date of Patent: October 30, 2001
    Assignee: Ellipsis Corporation
    Inventors: Robert C. Herrmann, Steven M. Landin