Patents Assigned to Diazem Corporation
  • Patent number: 8323502
    Abstract: Multi-layered macromolecules wherein the layers are covalently bonded together and wherein the macromolecules are covalently bonded to solid particulate substrates, methods for the preparation of such compositions, and methods for their uses in a multitude of end use applications ranging from the purification of waste chemical and metal process streams to the separation and identification of proteins, peptides, and oligionucleotides.
    Type: Grant
    Filed: December 31, 2011
    Date of Patent: December 4, 2012
    Assignee: Diazem Corporation
    Inventors: Charles E. Skinner, William Henry Campbell, Yung K. Kim
  • Patent number: 8114294
    Abstract: Multi-layered macromolecules wherein the layers are covalently bonded together and wherein the macromolecules are covalently bonded to solid particulate substrates, methods for the preparation of such compositions, and methods for their uses in a multitude of end use applications ranging from the purification of waste chemical and metal process streams to the separation and identification of proteins, peptides, and oligionucleotides.
    Type: Grant
    Filed: May 2, 2008
    Date of Patent: February 14, 2012
    Assignee: Diazem Corporation
    Inventors: Charles E. Skinner, William Henry Campbell, Yung K. Kim
  • Publication number: 20070077431
    Abstract: Multi-layered macromolecules wherein the layers are covalently bonded together and wherein the macromolecules are covalently bonded to solid particulate substrates, methods for the preparation of such compositions, and methods for their uses in a multitude of end use applications ranging from the purification of waste chemical and metal process streams to the separation and identification of proteins, peptides, and oligionucleotides.
    Type: Application
    Filed: November 13, 2006
    Publication date: April 5, 2007
    Applicant: Diazem Corporation
    Inventors: Charles Skinner, William Campbell, Yung Kim
  • Patent number: 7157529
    Abstract: Multi-layered macromolecules wherein the layers are covalently bonded together and wherein the macromolecules are covalently bonded to solid particulate substrates, methods for the preparation of such compositions, and methods for their uses in a multitude of end use applications ranging from the purification of waste chemical and metal process streams to the separation and identification of proteins, peptides, and oligionucleotides.
    Type: Grant
    Filed: June 7, 2004
    Date of Patent: January 2, 2007
    Assignee: Diazem Corporation
    Inventors: William H. Campbell, Yung K. Kim, Charles E. Skinner
  • Publication number: 20060237365
    Abstract: The present invention provides a silicone derivatized macromolecule that is supported on a particulate support or a separation membrane and method for making that composition. The silicon-derivatized macromolecule can also be combined with chiral ligands or chelated metals. The applications for the silicone derivatized macromolecule variety including use in HPLC separations, in purification process and in personal care formulations.
    Type: Application
    Filed: June 27, 2006
    Publication date: October 26, 2006
    Applicant: DIAZEM CORPORATION
    Inventors: Yung Kim, David Karpovich, William Campbell, Ling Yang
  • Publication number: 20040224157
    Abstract: Multi-layered macromolecules wherein the layers are covalently bonded together and wherein the macromolecules are covalently bonded to solid particulate substrates, methods for the preparation of such compositions, and methods for their uses in a multitude of end use applications ranging from the purification of waste chemical and metal process streams to the separation and identification of proteins, peptides, and oligionucleotides.
    Type: Application
    Filed: June 7, 2004
    Publication date: November 11, 2004
    Applicant: Diazem Corporation
    Inventors: William Henry Campbell, Yung K. Kim, Charles E. Skinner
  • Patent number: 5922449
    Abstract: A bonded phase material useful with a chromatographic separation process. The bonded phase material includes a hydroxyl bearing porous material, a first controlled stoichiometric amount of a first interactive silane covalently bonded to the surface of the hydroxyl bearing porous material and at least one additional interactive silane covalently bonded to the surface of the hydroxyl bearing porous material to provide the porous material with a gradient of functionality of varied polarity creates a unique overall polarity which is not obtainable by the separate interactive silanes themselves. The method of silating the porous material includes sequential application of controlled stoichiometric amounts of the interactive silanes.
    Type: Grant
    Filed: November 5, 1997
    Date of Patent: July 13, 1999
    Assignee: Diazem Corporation
    Inventor: Anthony Revis