Patents by Inventor Stig Magnor NORDAA

Stig Magnor NORDAA 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).

  • Composition useful in sulfate scale removal
    Patent number: 11945997
    Abstract: The present invention discloses a novel aqueous composition for use in removing petroleum-contaminated barium sulfate scale from a surface contaminated with such, said composition comprising: a chelating agent and a counterion component selected from the group consisting of: Li5DTPA; Na5DTPA; K5DTPA; Cs5DTPA; Na4EDTA; K4EDTA; TEAH4DTPA; and TBAH5DTPA; a scale removal enhancer; and a non-ionic surfactant. There is also disclosed methods to use such compositions.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: April 2, 2024
    Assignee: DORF KETAL CHEMICALS FZE
    Inventors: Clay Purdy, Markus Weissenberger, Stig Magnor Nordaa, Adrienne Lee
  • Composition useful in sulfate scale removal
    Patent number: 11898092
    Abstract: The present invention discloses a novel aqueous composition for use in removing petroleum-contaminated barium sulfate scale from a surface contaminated with such, said composition comprising: a chelating agent and a counterion component selected from the group consisting of: Li5DTPA; Na5DTPA; K5DTPA; Cs5DTPA; Na4EDTA; K4EDTA; TEAH4DTPA; and TBAH5DTPA; a scale removal enhancer; a non-ionic surfactant; and a hydrotrope. There is also disclosed methods to use such compositions.
    Type: Grant
    Filed: April 6, 2022
    Date of Patent: February 13, 2024
    Inventors: Clay Purdy, Markus Weissenberger, Stig Magnor Nordaa, Elsayed Abdelfatah
  • Composition Useful in Sulfate Scale Removal
    Publication number: 20240043737
    Abstract: The present invention discloses a novel aqueous composition for use in removing mixed sulfate scale from a surface contaminated with such, said composition comprising: a chelating agent and a counterion component selected from the group consisting of: Li5DTPA; Na5DTPA; K5DTPA; Cs5DTPA; Na4EDTA; K4EDTA; TEAH4DTPA; and TBAH5DTPA; a dissolution enhancer; optionally a compound such as sodium gluconate or the like and a carboxyl-containing fructan such as carboxymethyl inulin. There is also disclosed methods to use such compositions.
    Type: Application
    Filed: October 5, 2023
    Publication date: February 8, 2024
    Inventors: Clay Purdy, Markus Weissenberger, Stig Magnor Nordaa
  • COMPOSITION USEFUL IN SULFATE SCALE REMOVAL
    Publication number: 20220325167
    Abstract: The present invention discloses a novel aqueous composition for use in removing petroleum-contaminated barium sulfate scale from a surface contaminated with such, said composition comprising: a chelating agent and a counterion component selected from the group consisting of: Li5DTPA; Na5DTPA; K5DTPA; Cs5DTPA; Na4EDTA; K4EDTA; TEAH4DTPA; and TBAH5DTPA; a scale removal enhancer; a non-ionic surfactant; and a hydrotrope. There is also disclosed methods to use such compositions.
    Type: Application
    Filed: April 6, 2022
    Publication date: October 13, 2022
    Inventors: Clay PURDY, Markus WEISSENBERGER, Stig Magnor NORDAA, Elsayed ABDELFATAH
  • Composition Useful in Sulfate Scale Removal
    Publication number: 20210009890
    Abstract: The present invention discloses a novel aqueous composition for use in removing mixed sulfate scale from a surface contaminated with such, said composition comprising: a chelating agent and a counterion component selected from the group consisting of: Li5DTPA; Na5DTPA; K5DTPA; Cs5DTPA; Na4EDTA; K4EDTA; TEAH4DTPA; and TBAH5DTPA; a dissolution enhancer; optionally a compound such as sodium gluconate or the like and a carboxyl-containing fructan such as carboxymethyl inulin. There is also disclosed methods to use such compositions.
    Type: Application
    Filed: July 7, 2020
    Publication date: January 14, 2021
    Inventors: Clay Purdy, Markus Weissenberger, Stig Magnor Nordaa
  • Composition Useful in Sulfate Scale Removal
    Publication number: 20200308472
    Abstract: The present invention discloses a novel aqueous composition for use in removing petroleum-contaminated barium sulfate scale from a surface contaminated with such, said composition comprising: a chelating agent and a counterion component selected from the group consisting of: Li5DTPA; Na5DTPA; K5DTPA; Cs5DTPA; Na4EDTA; K4EDTA; TEAH4DTPA; and TBAH5DTPA; a scale removal enhancer; and a non-ionic surfactant. There is also disclosed methods to use such compositions.
    Type: Application
    Filed: March 18, 2020
    Publication date: October 1, 2020
    Inventors: Clay Purdy, Markus Weissenberger, Stig Magnor Nordaa, Adrienne Lee
  • COMPOSITION USEFUL IN SULFATE SCALE REMOVAL
    Publication number: 20190071597
    Abstract: The present invention discloses a novel aqueous composition for use in removing barium sulfate scale from a surface contaminated with such, said composition comprising: a chelating agent and a counterion component selected from the group consisting of: Li5DTPA; Na5DTPA; K5DTPA; Cs5DTPA; Na4EDTA; K4EDTA; TEAH4DTPA; and TBAH5DTPA; and a scale removal enhancer. There is also disclosed methods to use such compositions.
    Type: Application
    Filed: August 31, 2018
    Publication date: March 7, 2019
    Inventors: Clay PURDY, Markus WEISSENBERGER, Stig Magnor NORDAA