Patents by Inventor Richard C. Heaton

Richard C. Heaton 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).

  • Patent number: 6638490
    Abstract: A process for the selective production and isolation of high specific activity Cu67 from proton-irradiated enriched Zn70 target comprises target fabrication, target irradiation with low energy (<25 MeV) protons, chemical separation of the Cu67 product from the target material and radioactive impurities of gallium, cobalt, iron, and stable aluminum via electrochemical methods or ion exchange using both anion and cation organic ion exchangers, chemical recovery of the enriched Zn70 target material, and fabrication of new targets for re-irradiation is disclosed.
    Type: Grant
    Filed: September 18, 2002
    Date of Patent: October 28, 2003
    Assignee: The Regents of the University of California
    Inventors: David J. Jamriska, Sr., Wayne A. Taylor, Martin A. Ott, Malcolm Fowler, Richard C. Heaton
  • Publication number: 20030016775
    Abstract: A process for the selective production and isolation of high specific activity Cu67 from proton-irradiated enriched Zn70 target comprises target fabrication, target irradiation with low energy (<25 MeV) protons, chemical separation of the Cu67 product from the target material and radioactive impurities of gallium, cobalt, iron, and stable aluminum via electrochemical methods or ion exchange using both anion and cation organic ion exchangers, chemical recovery of the enriched Zn70 target material, and fabrication of new targets for re-irradiation is disclosed.
    Type: Application
    Filed: September 18, 2002
    Publication date: January 23, 2003
    Inventors: David J. Jamriska, Wayne A. Taylor, Martin A. Ott, Malcolm Fowler, Richard C. Heaton
  • Patent number: 6490330
    Abstract: A process for the selective production and isolation of high specific activity cu67 from proton-irradiated enriched Zn70 target comprises target fabrication, target irradiation with low energy (<25 MeV) protons, chemical separation of the Cu67 product from the target material and radioactive impurities of gallium, cobalt, iron, and stable aluminum via electrochemical methods or ion exchange using both anion and cation organic ion exchangers, chemical recovery of the enriched Zn70 target material, and fabrication of new targets for re-irradiation is disclosed.
    Type: Grant
    Filed: April 12, 1994
    Date of Patent: December 3, 2002
    Assignee: The Regents of the University of California
    Inventors: David J. Jamriska, Sr., Wayne A. Taylor, Martin A. Ott, Malcolm Fowler, Richard C. Heaton
  • Patent number: 5487880
    Abstract: A process for selective separation of sodium-22 from a proton irradiated minum target including dissolving a proton irradiated aluminum target in hydrochloric acid to form a first solution including aluminum ions and sodium ions, separating a portion of the aluminum ions from the first solution by crystallization of an aluminum salt, contacting the remaining first solution with an anion exchange resin whereby ions selected from the group consisting of iron and copper are selectively absorbed by the anion exchange resin while aluminum ions and sodium ions remain in solution, contacting the solution with an cation exchange resin whereby aluminum ions and sodium ions are adsorbed by the cation exchange resin, and, contacting the cation exchange resin with an acid solution capable of selectively separating the adsorbed sodium ions from the cation exchange resin while aluminum ions remain adsorbed on the cation exchange resin is disclosed.
    Type: Grant
    Filed: November 30, 1993
    Date of Patent: January 30, 1996
    Assignee: The Regents of the University of California Office of Technology Transfer
    Inventors: Wayne A. Taylor, Richard C. Heaton, David J. Jamriska
  • Patent number: 5330731
    Abstract: A process for selective separation of strontium-82 and strontium-85 from proton irradiated molybdenum targets is provided and includes dissolving the molybdenum target in a hydrogen peroxide solution to form a first ion-containing solution, passing the first ion-containing solution through a first cationic resin whereby ions selected from the group consisting of molybdenum, niobium, technetium, selenium, vanadium, arsenic, germanium, zirconium and rubidium remain in the first ion-containing solution while ions selected from the group consisting of rubidium, zinc, beryllium, cobalt, iron, manganese, chromium, strontium, yttrium and zirconium are selectively adsorbed by the first resin, contacting the first resin with an acid solution capable of stripping adsorbed ions from the first cationic exchange resin whereby the adsorbed ions are removed from the first resin to form a second ion-containing solution, evaporating the second ion-containing solution for time sufficient to remove substantially all of the acid
    Type: Grant
    Filed: November 25, 1992
    Date of Patent: July 19, 1994
    Assignee: The United States of America as represented by the Untied States Department of Energy
    Inventors: Richard C. Heaton, David J. Jamriska, Sr., Wayne A. Taylor
  • Patent number: 5167938
    Abstract: A process for selective separation of strontium-82 and strontium-85 from proton irradiated molybdenum targets comprises dissolving the molybdenum target in a hydrogen peroxide solution to form a first solution containing ions selected from a group consisting of molybdenum, niobium, technetium, selenium, vanadium, arsenic, germanium, zirconium, rubidium, zinc, beryllium, cobalt, iron, manganese, chromium, strontium, and yttrium; passing the solution through a first cationic resin whereby ions selected from a group consisting of zinc, beryllium, cobalt, iron, manganese, chromium, strontium, yttrium a portion of zirconium and a portion of rubidium are selectively absorbed by the first resin; contacting the first resin with an acid solution to strip and remove the absorbed ions from the first cationic exchange resin to form a second solution; evaporating the second solution for a time sufficient to remove substantially all of the acid and water from the solution whereby a residue remains; dissolving the residue i
    Type: Grant
    Filed: August 14, 1991
    Date of Patent: December 1, 1992
    Assignee: United States Department of Energy
    Inventors: Richard C. Heaton, David J. Jamriska, Sr., Wayne A. Taylor