Patents by Inventor Anthony E. Allegrezza, Jr.

Anthony E. Allegrezza, Jr. 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).

  • CERAMIC NANOWIRE MEMBRANES AND METHODS OF MAKING THE SAME
    Publication number: 20130270180
    Abstract: Embodiments of the present invention disclose ceramic membranes having bonded ceramic nanowires. Methods of making ceramic membranes having bonded ceramic nanowires are also disclosed.
    Type: Application
    Filed: October 28, 2011
    Publication date: October 17, 2013
    Applicant: NOVARIALS CORPORATION
    Inventors: Xinjie Zhang, Anthony E. Allegrezza, JR., Qi Zhao, Zhilong Wang
  • Polysulfone copolymer membranes and process
    Patent number: 5885456
    Abstract: A porous membrane, such as a microporous or ultrafiltration membrane, is formed from a solution of a polysulfone and a free radical polymerizable monomer exposed to ultraviolet light to form a blend of the polysulfone and copolymers of polysulfone activation products and polymerized monomer having polymer segments covalently bonded to each other. The solution is separated into two phases including a porous solid phase comprising the membrane.
    Type: Grant
    Filed: August 9, 1996
    Date of Patent: March 23, 1999
    Assignee: Millipore Corporation
    Inventors: John Charkoudian, Anthony E. Allegrezza, Jr.
  • 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
  • Membrane, process and system for isolating virus from solution
    Patent number: 5017292
    Abstract: A composite membrane and process utilizing the membrane which is capable of selectively removing particles such as viral particles from a solution such as a protein solution is provided. The membrane comprises a porous membrane substrate, a surface skin having ultrafiltration separation properties and an intermediate porous zone between the substrate and the skin which intermediate zone has an average pore size smaller than that of the substrate. The intermediate zone is free of voids which break the skin and which directly fluid communicate with the substrate. The composite is capable of a log reduction value of at least 3 (99.9% removal) of particles selectively from solution.
    Type: Grant
    Filed: May 10, 1990
    Date of Patent: May 21, 1991
    Assignee: Millipore Corporation
    Inventors: Anthony J. DiLeo, Anthony E. Allegrezza, Jr., Edmund T. Burke
  • Composite ultrafiltration membranes
    Patent number: 4824568
    Abstract: Composite ultrafiltration membranes are disclosed which are produced by forming an ultrafiltration membrane structure on a preformed microporous membrane.
    Type: Grant
    Filed: May 16, 1986
    Date of Patent: April 25, 1989
    Assignee: Millipore Corporation
    Inventors: Anthony E. Allegrezza, Jr., Edmund T. Burke