Patents by Inventor Ellen C. Bellantoni

Ellen C. Bellantoni 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).

  • Composite ultrafiltration membrane
    Patent number: 5698281
    Abstract: A composite ultrafiltration membrane is provided having a microporous polyolefin or sulfone polymer base resistant substrate and an ultrafiltration layer formed from a sulfone polymer.
    Type: Grant
    Filed: June 20, 1996
    Date of Patent: December 16, 1997
    Assignee: Millipore Corporation
    Inventors: Ellen C. Bellantoni, Robert S. Loya
  • Porous membrane formed from interpenetrating polymer network having hydrophilic surface
    Patent number: 5158721
    Abstract: A porous membrane is formed from an interpenetrating polymer network of a hydrophobic polymer and a polymerized and crosslinked hydrophilic monomeric composition. A solution of the polymer and monomeric composition is cast, exposed to ultraviolet radiation, coagulated and dried. The resulting dried membrane is annealed in order to render its surface hydrophilic.
    Type: Grant
    Filed: September 6, 1991
    Date of Patent: October 27, 1992
    Assignee: Millipore Corporation
    Inventors: Anthony E. Allegrezza, Jr., Ellen C. Bellantoni
  • Porous membrane formed from interpenetrating polymer network having hydrophilic surface
    Patent number: 5079272
    Abstract: A porous membrane is formed from an interpenetrating polymer network of a hydrophobic polymer and a polymerized and crosslinked hydrophilic monomeric composition. A solution of the polymer and monomeric composition is cast, exposed to ultraviolet radiation, coagulated and dried. The resulting dried membrane is annealed in order to render its surface hydrophilic.
    Type: Grant
    Filed: November 30, 1989
    Date of Patent: January 7, 1992
    Assignee: Millipore Corporation
    Inventors: Anthony E. Allegrezza, Jr., Ellen C. Bellantoni