Patents by Inventor Gerald Colombo

Gerald Colombo 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).

  • Method of making thermally regenerable salt sorbent resins
    Patent number: 7294654
    Abstract: A heterogenous hybrid thermally regenerable salt sorbent resin is formed from a hybrid precursor resin. The hybrid precursor resin is formed by intimately mixing a dry, solid crosslinked macroporous copolymer with a solution containing a polyunsaturated monomer, a monoethylenically unsaturated monomer containing a haloalkyl group and a polymerization initiator, followed by heating to cause polymerization. The hybrid precursor resin is then treated with a weak base, then subjected to hydrolysis conditions to form, respectively, weak base groups and weak acid groups to produce the hybrid thermally regenerable salt sorbent resin.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: November 13, 2007
    Assignee: Novation Environmental Technologies, Inc.
    Inventors: Roger E. Johnson, Gerald Colombo
  • Sulfate-selective anion exchange resins for use in combination with TRSS resins in feed water treatment
    Patent number: 7235180
    Abstract: An improved system of resins comprising a combination of a sulfate-specific strongly basic anion exchange resin and a heterogenous hybrid thermally regenerable salt sorbent (TRSS) resin is provided. The anion exchange resin contains triethylamine and/or tributylamine groups. The TRSS resin comprises a macroporous host copolymer and a crosslinked guest copolymer having, respectively, weak acid groups and weak base groups. The system is used to treat feed water containing dissolved ions, including sulfate ions, and is efficiently regenerated.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: June 26, 2007
    Assignee: Novation Environmental Technologies, Inc.
    Inventors: Roger E. Johnson, Gerald Colombo
  • Sulfate-selective anion exchange resins for use in combination with TRSS resins in feed water treatment
    Publication number: 20060054561
    Abstract: An improved system of resins comprising a combination of a sulfate-specific strongly basic anion exchange resin and a heterogenous hybrid thermally regenerable salt sorbent (TRSS) resin is provided. The anion exchange resin contains triethylamine and/or tributylamine groups. The TRSS resin comprises a macroporous host copolymer and a crosslinked guest copolymer having, respectively, weak acid groups and weak base groups. The system is used to treat feed water containing dissolved ions, including sulfate ions, and is efficiently regenerated.
    Type: Application
    Filed: September 13, 2005
    Publication date: March 16, 2006
    Inventors: Roger Johnson, Gerald Colombo
  • Thermally regenerable salt sorbents
    Publication number: 20050234200
    Abstract: An improved heterogenous hybrid thermally regenerable salt sorbent resin is provided. The salt sorbent resin comprises a macroporous host copolymer and a crosslinked guest copolymer having, respectively, weak acid groups and weak base groups. The salt sorbent resin is formed from a precursor heterogenous hybrid resin having a crosslinked guest copolymer formed from a polyunsaturated monomer and a monoethylenically unsaturated monomer containing a haloalkyl group.
    Type: Application
    Filed: May 28, 2004
    Publication date: October 20, 2005
    Inventors: Roger Johnson, Gerald Colombo
  • Method of making thermally regenerable salt sorbent resins
    Publication number: 20050234141
    Abstract: A heterogenous hybrid thermally regenerable salt sorbent resin is formed from a hybrid precursor resin. The hybrid precursor resin is formed by intimately mixing a dry, solid crosslinked macroporous copolymer with a solution containing a polyunsaturated monomer, a monoethylenically unsaturated monomer containing a haloalkyl group and a polymerization initiator, followed by heating to cause polymerization. The hybrid precursor resin is then treated with a weak base, then subjected to hydrolysis conditions to form, respectively, weak base groups and weak acid groups to produce the hybrid thermally regenerable salt sorbent resin.
    Type: Application
    Filed: March 29, 2005
    Publication date: October 20, 2005
    Inventors: Roger Johnson, Gerald Colombo