Patents by Inventor Cristina M. Berger

Cristina M. Berger 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).

  • Removal of PCB and other halogenated organic contaminants found in ex situ structures
    Patent number: 7582682
    Abstract: Emulsified systems of a surfactant-stabilized, biodegradable water-in-solvent emulsion with bimetallic particles contained with the emulsion droplets are useful at removing PCBs from ex situ structures. The hydrophobic emulsion system draws PCBs through the solvent/surfactant membrane. Once inside the membrane, the PCBs diffuse into the bimetallic particles and undergo degradation. The PCBs continue to enter, diffuse, degrade, and biphenyl will exit the particle maintaining a concentration gradient across the membrane and maintaining a driving force of the reaction.
    Type: Grant
    Filed: August 15, 2007
    Date of Patent: September 1, 2009
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Jacqueline W. Quinn, Christian A. Clausen, Cherie L. Geiger, Christina Coon, Laura B. Filipek, Cristina M. Berger, Kristen M. Milum
  • Removal of PCB and Other Halogenated Organic Contaminants Found in Ex Situ Structures
    Publication number: 20080177125
    Abstract: Emulsified systems of a surfactant-stabilized, biodegradable water-in-solvent emulsion with bimetallic particles contained with the emulsion droplets are useful at removing PCBs from ex situ structures. The hydrophobic emulsion system draws PCBs through the solvent/surfactant membrane. Once inside the membrane, the PCBs diffuse into the bimetallic particles and undergo degradation. The PCBs continue to enter, diffuse, degrade, and biphenyl will exit the particle maintaining a concentration gradient across the membrane and maintaining a driving force of the reaction.
    Type: Application
    Filed: August 15, 2007
    Publication date: July 24, 2008
    Applicant: U.S.A as Represented by the Administrator of the National Aeronautics and Space Ad
    Inventors: Jacqueline Quinn, Christian Clausen, Cherie L. Geiger, Christina Coon, Laura B. Filipek, Cristina M. Berger, Kristen M. Milum
  • Removal of PCB and other halogenated organic contaminants found in ex situ structures
    Patent number: 7271199
    Abstract: Emulsified systems of a surfactant-stabilized, biodegradable water-in-solvent emulsion with bimetallic particles contained with the emulsion droplets are useful at removing PCBs from ex situ structures. The hydrophobic emulsion system draws PCBs through the solvent/surfactant membrane. Once inside the membrane, the PCBs diffuse into the bimetallic particles and undergo degradation. The PCBs continue to enter, diffuse, degrade, and biphenyl will exit the particle maintaining a concentration gradient across the membrane and maintaining a driving force of the reaction.
    Type: Grant
    Filed: October 27, 2004
    Date of Patent: September 18, 2007
    Assignee: United States of America as Represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Jacqueline Quinn, Christian Clausen, Cherie L. Geiger, Christina Coon, Cristina M. Berger, Laura B. Filipek, Kristen M. Milum