Patents by Inventor Roger Howard Asay

Roger Howard Asay 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).

  • Light water reactor primary coolant activity cleanup
    Patent number: 9589690
    Abstract: A method for the cleanup of ionic species such as cobalt and nickel in nuclear power plant aqueous streams using a sequestration resin material is disclosed herein. The method includes the steps of providing a sequestration resin for removal of radioisotopes of transition metal impurities contained in the plant process streams, and distributing the sequestration resin into the plant process streams such that the sequestration resin interacts with the process streams and removes the transition metal impurities.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: March 7, 2017
    Assignee: ELECTRIC POWER RESEARCH INSTITUTE, INC.
    Inventors: Paul L. Frattini, Roger Howard Asay, Keith Paul Fruzzetti, Susan Elaine Garcia, Richard Herbert Kohlmann, Daniel Morgan Wells
  • CAPTURE, REMOVAL, AND STORAGE OF RADIOACTIVE SPECIES
    Publication number: 20160118153
    Abstract: A method of capturing radioactive species from an aqueous solution and removing the radioactive species for disposal, includes: contacting the aqueous solution with a first sequestration resin comprising a sequestration ligand coupled to a sulfonic acid based polymer resin backbone, to allow the first sequestration resin to capture the radioactive species; removing the first sequestration resin with the captured radioactive species from the aqueous solution; and using an acid to lower a pH of the first sequestration resin to release the radioactive species from the first sequestration resin.
    Type: Application
    Filed: November 9, 2015
    Publication date: April 28, 2016
    Inventors: Paul L. Frattini, Roger Howard Asay, Keith Paul Fruzzetti, Susan Elaine Garcia, Leon Yengoyan, Lisa Maxine Edwards
  • Capture and removal of radioactive species from an aqueous solution
    Patent number: 9214248
    Abstract: The present invention relates to a method of capturing radioactive species in an aqueous solution and removing the radioactive species for disposal. The method includes the steps of providing a macroporous bead form sequestration resin including a sequestration ligand coupled to a sulfonic acid based polymer resin, subjecting the bead form sequestration resin to radioactive species contained in the aqueous solution to allow the bead form sequestration resin to capture the radioactive species; using an acid to lower a pH of the resin to release the radioactive species; and disposing the radioactive species in a radioactive storage facility.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: December 15, 2015
    Assignee: Electric Power Research Institute, Inc.
    Inventors: Paul L. Frattini, Roger Howard Asay, Keith Paul Fruzzetti, Susan Elaine Garcia, Leon Yengoyan, Lisa Maxine Edwards
  • LIGHT WATER REACTOR PRIMARY COOLANT ACTIVITY CLEANUP
    Publication number: 20120183115
    Abstract: A method for the cleanup of ionic species such as cobalt and nickel in nuclear power plant aqueous streams using a sequestration resin material is disclosed herein. The method includes the steps of providing a sequestration resin for removal of radioisotopes of transition metal impurities contained in the plant process streams, and distributing the sequestration resin into the plant process streams such that the sequestration resin interacts with the process streams and removes the transition metal impurities.
    Type: Application
    Filed: November 23, 2011
    Publication date: July 19, 2012
    Applicant: ELECTRIC POWER RESEARCH INSTITUTE, INC.
    Inventors: Paul L. Frattini, Roger Howard Asay, Keith Paul Fruzzetti, Susan Elaine Garcia, Richard Herbert Kohlmann, Daniel Morgan Wells
  • CAPTURE, REMOVAL, AND STORAGE OF RADIOACTIVE SPECIES IN AN AQUEOUS SOLUTION
    Publication number: 20120184796
    Abstract: The present invention relates to a method of capturing radioactive species in an aqueous solution and removing the radioactive species for disposal. The method includes the steps of providing a macroporous bead form sequestration resin, subjecting the bead form sequestration resin to radioactive species contained in the aqueous solution to allow the bead form sequestration resin to capture the radioactive species; and disposing the radioactive species in a radioactive storage facility.
    Type: Application
    Filed: November 23, 2011
    Publication date: July 19, 2012
    Applicant: ELECTRIC POWER RESEARCH INSTITUTE, INC.
    Inventors: Paul L. Frattini, Roger Howard Asay, Keith Paul Fruzzetti, Susan Elaine Garcia, Leon Yengoyan, Lisa Maxine Edwards