Patents by Inventor Mario Luis Costa

Mario Luis Costa 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).

  • Conditioning slurry samples for quantitative instrumental analysis
    Publication number: 20100047127
    Abstract: A method and system to consistently and automatically conditioning and delivering a solid-free liquid (filtrate) sample suitable for instrumental analysis is disclosed. A slurry, preferably a slurry produced by a sub-atmospheric pressure chlorate dioxide generating process, is fed through a filter to remove the solid phase and to provide the liquid phase on the downstream side of the filter, where the concentration of at least one dissolved component is determined.
    Type: Application
    Filed: November 2, 2009
    Publication date: February 25, 2010
    Inventors: Mario Luis Costa, John Brian Birks, Chunmin Pu, Kui Xu
  • Conditioning slurry samples for quantitative instrumental analysis
    Patent number: 7651865
    Abstract: A method and system to consistently and automatically conditioning and delivering a solid-free liquid (filtrate) sample suitable for instrumental analysis is disclosed. A slurry, preferably a slurry produced by a sub-atmospheric pressure chlorate dioxide generating process, is fed through a filter to remove the solid phase and to provide the liquid phase on the downstream side of the filter, where the concentration of at least one dissolved component is determined.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: January 26, 2010
    Assignee: Superior Plus Inc.
    Inventors: Mario Luis Costa, John Brian Birks, Chunmin Pu, Kui Xu
  • Chlorine dioxide from a methanol-based generating system as a chemical feed in alkali metal chlorite manufacture
    Publication number: 20040228790
    Abstract: Alkali metal chlorite, particularly sodium chlorite, is produced with a level of purity superior to that expected based on the composition of the chlorine dioxide generator off-gas that is used as a raw chemical feed for chlorite manufacture. The off-gas is preferably drawn before it enters the chlorine dioxide absorption tower and is passed through a conditioning stage to then react in a liquid medium to produce an alkali metal chlorite solution from which the unreacted and produced gases are immediately separated.
    Type: Application
    Filed: May 15, 2003
    Publication date: November 18, 2004
    Inventors: Mario Luis Costa, Gerald Cowley, Chunmin Pu
  • Hydrogen peroxide-based chlorine dioxide generation process
    Publication number: 20040071628
    Abstract: Chlorine dioxide is produced at high efficiency in a continuous process effected using hydrogen peroxide as the reducing agent in a single vessel generator-evaporator-crystallizer at the boiling point of the reaction medium under sub-atmospheric pressure. The reaction medium is maintained under steady state continuous operation with a residual chlorine concentration while having no residual hydrogen peroxide concentration in the reaction medium.
    Type: Application
    Filed: November 4, 2003
    Publication date: April 15, 2004
    Inventors: Mario Luis Costa, Chunmin Pu, Edward J. Bechberger
  • Method of improving yield of chlorine dioxide generation processes
    Patent number: 6555085
    Abstract: A greater yield of chlorine dioxide from a chlorine dioxide generating process is obtained by providing acidic or acidity-generating components in the product chlorine dioxide solution to provide a chlorine dioxide solution having a pH below about 5.5.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: April 29, 2003
    Assignee: Superior Plus Inc.
    Inventors: Edward J. Bechberger, Mario Luis Costa, Marek Lipsztajn
  • Method of improving yield of chlorine dioxide generation processes
    Publication number: 20020037248
    Abstract: A greater yield of chlorine dioxide from a chlorine dioxide generating process is obtained by providing acidic or acidity-generating components in the product chlorine dioxide solution to provide a chlorine dioxide solution having a pH below about 5.5.
    Type: Application
    Filed: January 31, 2001
    Publication date: March 28, 2002
    Inventors: Edward J. Bechberger, Mario Luis Costa, Marek Lipsztajn