Patents by Inventor Paul Schaffer

Paul Schaffer 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: 12614645
    Abstract: A method of separating actinium and/or radium from proton-irradiated thorium metal. The thorium metal is irradiated to produce isotopes including thorium, actinium and/or radium. The resultant product is dissolved in solution and a selective precipitant is used to precipitate a bulk portion of the thorium. The precipitated thorium can be recovered. Chromatography is carried out on the remaining solution to remove residual thorium and to separate the actinium from the radium.
    Type: Grant
    Filed: August 28, 2023
    Date of Patent: April 28, 2026
    Assignees: THE UNIVERSITY OF BRITISH COLUMBIA, TRIUMF INC.
    Inventors: Andrew Kyle Henderson Robertson, Hua Yang, Stefan Zeisler, Paul Schaffer
  • Publication number: 20250305177
    Abstract: A process for producing technetium-99m from a molybdenum-100 metal powder, comprising the steps of: (i) irradiating in a substantially oxygen-free environment, a hardened sintered target plate coated with a Mo-100 metal, with protons produced by a cyclotron; (ii) dissolving molybdenum ions and technetium ions from the irradiated target plate with an H2O2 solution to form an oxide solution; (iv) raising the pH of the oxide solution to about 14; (v) flowing the pH-adjusted oxide solution through a resin column to immobilize K[TcO4] ions thereon and to elute K2[MoO4] ions therefrom; (vi) eluting the bound K[TcO4] ions from the resin column; (vii) flowing the eluted K[TcO4] ions through an alumina column to immobilize K[TcO4] ions thereon; (viii) washing the immobilized K[TcO4] ions with water; (ix) eluting the immobilized K[TcO4] ions with a saline solution; and (x) recovering the eluted Na[TcO4] ions.
    Type: Application
    Filed: June 9, 2025
    Publication date: October 2, 2025
    Inventors: Paul Schaffer, Francois Benard, Kenneth R. Buckley, Victoire Hanemaayer, Cornelia Manuela Hoehr, Julius Alexander Klug, Michael S. Kovacs, Thomas J. Morley, Thomas J. Ruth, John Valliant, Stefan K. Zeisler, Maurice G. Dodd
  • Publication number: 20240139352
    Abstract: Imaging agents comprising an isolated polypeptide conjugated with a radionucleide and a chelator; wherein the isolated polypeptide binds specifically to HER2, or a variant thereof; and methods for preparing and using these imaging agents.
    Type: Application
    Filed: March 8, 2023
    Publication date: May 2, 2024
    Inventors: Faisal Ahmed Syud, Brian Duh-Lan Lee, Rong Zhang, Peter Brian Iveson, Paul Schaffer, Tove Simonsson, Elin Gunneriusson, Fredrik Frejd, Lars Abrahmsen, Joachim Feldwisch, Nina Herne, Christofer Lendel
  • Publication number: 20240011179
    Abstract: A system for producing technetium-99m from molybdate-100. The system comprises: a target capsule apparatus for housing a Mo-100-coated target plate; a target capsule pickup apparatus for engaging and delivering the target cell apparatus into a target station apparatus; a target station apparatus for receiving and mounting therein the target capsule apparatus. The target station apparatus is engaged with a cyclotron for irradiating the Mo-100-coated target plate with protons. The irradiated target capsule apparatus is transferred to a receiving cell apparatus comprising a dissolution/purification module for receiving therein a proton-irradiated Mo-100-coated target plate. A conveyance conduit infrastructure interconnects: (i) the target capsule pickup apparatus with the target station apparatus, (ii) the target station apparatus and the receiving cell apparatus; and (iii) the receiving cell apparatus and the dissolution/purification module.
    Type: Application
    Filed: April 21, 2023
    Publication date: January 11, 2024
    Inventors: Paul SCHAFFER, Francois BENARD, Kenneth R. BUCKLEY, Victoire HANEMAAYER, Cornelia Manuela HOEHR, Julius Alexander KLUG, Michael S. KOVACS, Thomas J. MORLEY, Thomas J. RUTH, John VALLIANT, Stefan K. ZEISLER, Maurice G. DODD
  • Publication number: 20230402200
    Abstract: A method of separating actinium and/or radium from proton-irradiated thorium metal. The thorium metal is irradiated to produce isotopes including thorium, actinium and/or radium. The resultant product is dissolved in solution and a selective precipitant is used to precipitate a bulk portion of the thorium. The precipitated thorium can be recovered. Chromatography is carried out on the remaining solution to remove residual thorium and to separate the actinium from the radium.
    Type: Application
    Filed: August 28, 2023
    Publication date: December 14, 2023
    Inventors: Andrew Kyle Henderson ROBERTSON, Hua YANG, Stefan ZEISLER, Paul SCHAFFER
  • Patent number: 11798700
    Abstract: A method of separating actinium and/or radium from proton-irradiated thorium metal. The thorium metal is irradiated to produce isotopes including thorium, actinium and/or radium. The resultant product is dissolved in solution and a selective precipitant is used to precipitate a bulk portion of the thorium. The precipitated thorium can be recovered. Chromatography is carried out on the remaining solution to remove residual thorium and to separate the actinium from the radium.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: October 24, 2023
    Assignees: THE UNIVERSITY OF BRITISH COLUMBIA, TRIUMF INC.
    Inventors: Andrew Kyle Henderson Robertson, Hua Yang, Stefan Zeisler, Paul Schaffer
  • Publication number: 20230270892
    Abstract: A chelator having the general structure (I) for chelating ra-diometals such as 225Ac under mild conditions is provided. (I) The chelator can be coupled to a biological targeting moiety to facilitate targeted delivery of the chelated radiometal in a mammalian subject.
    Type: Application
    Filed: February 25, 2021
    Publication date: August 31, 2023
    Inventors: Hua YANG, Feng GAO, Paul SCHAFFER, Zheliang YUAN, Chengcheng ZHANG, Francois BENARD, Luke WHARTON
  • Patent number: 11661668
    Abstract: A system for producing technetium-99m from molybdate-100. The system comprises: a target capsule apparatus for housing a Mo-100-coated target plate; a target capsule pickup apparatus for engaging, and delivering the target cell apparatus into a target station apparatus; target station apparatus for receiving and mounting therein the target capsule apparatus. The target station apparatus is engaged with a cyclotron for irradiating the Mo-100-coated target plate with protons. The irradiated target capsule apparatus is transferred to a receiving cell apparatus comprising a dissolution/purification module for receiving therein a proton-irradiated Mo-100-coated target plate. A conveyance conduit infrastructure interconnects: (i) the target capsule pickup apparatus with the target station apparatus, (ii) the target station apparatus and the receiving cell apparatus; and (iii) the receiving cell apparatus and the dissolution/purification module.
    Type: Grant
    Filed: June 11, 2021
    Date of Patent: May 30, 2023
    Assignee: TRIUMF INC.
    Inventors: Paul Schaffer, Francois Benard, Kenneth R. Buckley, Victoire Hanemaayer, Cornelia Manuela Hoehr, Julius Alexander Klug, Michael S. Kovacs, Thomas J. Morley, Thomas J. Ruth, John Valliant, Stefan K. Zeisler, Maurice G. Dodd
  • Patent number: 11633507
    Abstract: Imaging agents comprising an isolated polypeptide conjugated with a radionucleide and a chelator; wherein the isolated polypeptide binds specifically to HER2, or a variant thereof; and methods for preparing and using these imaging agents.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: April 25, 2023
    Assignees: GENERAL ELECTRIC COMPANY, AFFIBODY AB
    Inventors: Faisal Ahmed Syud, Brian Duh-Lan Lee, Rong Zhang, Peter Brian Iveson, Paul Schaffer, Tove Simonsson, Elin Gunneriusson, Fredrik Frejd, Lars Abrahmsen, Joachim Feldwisch, Nina Herne, Christofer Lendel
  • Patent number: 11534114
    Abstract: The present invention provides 18F-labeled amino acids or derivatives thereof having formula (I) and methods of making same, which can be suitable for PET imaging:
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: December 27, 2022
    Assignee: Simon Fraser University
    Inventors: Paul Schaffer, Hua Yang, Robert Britton, Matthew Nodwell, Zheliang Yuan
  • Publication number: 20210335515
    Abstract: A system for producing technetium-99m from molybdate-100. The system comprises: a target capsule apparatus for housing a Mo-100-coated target plate; a target capsule pickup apparatus for engaging, and delivering. the target cell apparatus into a target station apparatus target station apparatus for receiving and mounting therein the target capsule apparatus. The target station apparatus is engaged with a cyclotron for irradiating the Mo-100-coated target plate with protons. The irradiated target capsule apparatus is transferred to a receiving cell apparatus comprising a dissolution/purification module for receiving therein a proton-irradiated Mo-100-coated target plate. A conveyance conduit infrastructure interconnects: (i) the target capsule pickup apparatus with the target station apparatus, (ii) the target station apparatus and the receiving cell apparatus, and (iii) the receiving cell apparatus and the dissolution/purification module.
    Type: Application
    Filed: June 11, 2021
    Publication date: October 28, 2021
    Inventors: Paul SCHAFFER, Francois BENARD, Kenneth R. BUCKLEY, Victoire HANEMAAYER, Cornelia Hoehr MANUELA, Julius Alexander KLUG, Michael S. KOVACS, Thomas J. MORLEY, Thomas J. RUTH, John VALLIANT, Stefan K. ZEISLER, Maurice G. DODD
  • Publication number: 20210170057
    Abstract: Imaging agents comprising an isolated polypeptide conjugated with a radionucleide and a chelator; wherein the isolated polypeptide binds specifically to HER2, or a variant thereof; and methods for preparing and using these imaging agents.
    Type: Application
    Filed: December 10, 2020
    Publication date: June 10, 2021
    Inventors: Faisal Ahmed Syud, Brian Duh-Lan Lee, Rong Zhang, Peter Brian Iveson, Paul Schaffer, Tove Simonsson, Elin Gunneriusson, Fredrik Frejd, Lars Abrahmsen, Joachim Feldwisch, Nina Herne, Christofer Lendel
  • Publication number: 20210027903
    Abstract: A system for producing technetium-99m from molybdate-100. The system comprises: a target capsule apparatus for housing a Mo-100-coated target plate; a target capsule pickup apparatus for engaging and delivering the target cell apparatus into a target station apparatus; a target station apparatus for receiving and mounting therein the target capsule apparatus. The target station apparatus is engaged with a cyclotron for irradiating the Mo-100-coated target plate with protons. The irradiated target capsule apparatus is transferred to a receiving cell apparatus comprising a dissolution/purification module for receiving therein a proton-irradiated Mo-100-coated target plate. A conveyance conduit infrastructure interconnects: (i) the target capsule pickup apparatus with the target station apparatus, (ii) the target station apparatus and the receiving cell apparatus; and (iii) the receiving cell apparatus and the dissolution/purification module.
    Type: Application
    Filed: June 5, 2020
    Publication date: January 28, 2021
    Inventors: Paul SCHAFFER, Francois BENARD, Kenneth R. BUCKLEY, Victoire HANEMAAYER, Cornelia Hoehr MANUELA, Julius Alexander KLUG, Michael S. KOVACS, Thomas J. MORLEY, Thomas J. RUTH, John VALLIANT, Stefan K. ZEISLER, Maurice G. DODD
  • Publication number: 20210027905
    Abstract: A method of separating actinium and/or radium from proton-irradiated thorium metal. The thorium metal is irradiated to produce isotopes including thorium, actinium and/or radium. The resultant product is dissolved in solution and a selective precipitant is used to precipitate a bulk portion of the thorium. The precipitated thorium can be recovered. Chromatography is carried out on the remaining solution to remove residual thorium and to separate the actinium from the radium.
    Type: Application
    Filed: March 26, 2019
    Publication date: January 28, 2021
    Inventors: Andrew Kyle Henderson ROBERTSON, Hua YANG, Stefan ZEISLER, Paul SCHAFFER
  • Patent number: 10894097
    Abstract: Imaging agents comprising an isolated polypeptide conjugated with a radionuclide and a chelator; wherein the isolated polypeptide binds specifically to HER2, or a variant thereof; and methods for preparing and using these imaging agents.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: January 19, 2021
    Assignees: GENERAL ELECTRIC COMPANY, AFFIBODY AB
    Inventors: Faisal Ahmed Syud, Brian Duh-Lan Lee, Rong Zhang, Peter Brian Iveson, Paul Schaffer, Tove Simonsson, Elin Gunneriusson, Fredrik Frejd, Lars Abrahmsen, Joachim Feldwisch, Nina Herne, Christofer Lendel
  • Publication number: 20200360004
    Abstract: A dispensing device and cartridge for simultaneous delivery and mixing of multiple co-reactive materials, the cartridge having proximal and distal ends, and having an elongated holder body with substantially parallel longitudinal voids. Multiple syringe bodies are disposed parallel within the voids and multiple co-reactive materials are separately disposed in the syringe bodies. The dispensing device also includes a longitudinal housing which is structured and arranged to receive the cartridge and has a malleable spray or mixing tip for accessing difficult to reach locations.
    Type: Application
    Filed: July 31, 2020
    Publication date: November 19, 2020
    Inventors: Jianxin GUO, Jared SCHNEIDER, Simon COHN, Christopher KOKINELIS, Paul SCHAFFER
  • Publication number: 20190262481
    Abstract: Imaging agents comprising an isolated polypeptide conjugated with a radionuclide and a chelator; wherein the isolated polypeptide binds specifically to HER2, or a variant thereof; and methods for preparing and using these imaging agents.
    Type: Application
    Filed: September 27, 2018
    Publication date: August 29, 2019
    Inventors: Faisal Ahmed Syud, Brian Duh-Lan Lee, Rong Zhang, Peter Brian Iveson, Paul Schaffer, Tove Simonsson, Elin Gunneriusson, Fredrik Frejd, Lars Abrahmsen, Joachim Feldwisch, Nina Herne, Christofer Lendel
  • Publication number: 20190223814
    Abstract: The present invention provides 18F-labeled amino acids or derivatives thereof having formula (I) and methods of making same, which can be suitable for PET imaging:
    Type: Application
    Filed: August 23, 2017
    Publication date: July 25, 2019
    Inventors: Paul SCHAFFER, Hua YANG, Robert BRITTON, Matthew NODWELL, Zheliang YUAN
  • Publication number: 20190221325
    Abstract: A process for producing a hardened target plate coated with a molybdenum-100 metal, comprising the steps of: (i) suspending and intermixing a refined molybdenum-100 metal powder having grain sizes of less than about 10 microns, and a binder, in a polar organic solvent; (ii) inserting into the molybdate-100 mixture, a cathode plate comprising a transition metal and an anode plate comprising conductive metal; (iii) applying a potential from about 300 V to about 1,300 V to the anode plate and cathode plate; (iv) recovering the cathode plate from the molybdate-100 mixture; and (v) sintering the cathode plate at a temperature from a range of about 1,200° C. to about 1,900° C. for a period of time from about 3 h to about 8 h.
    Type: Application
    Filed: January 21, 2019
    Publication date: July 18, 2019
    Inventors: Paul SCHAFFER, Francois BENARD, Kenneth R. BUCKLEY, Victoire HANEMAAYER, Cornelia Hoehr MANUELA, Julius Alexander KLUG, Michael S. KOVACS, Thomas J. MORLEY, Thomas J. RUTH, John VALLIANT, Stefan K. ZEISLER, Maurice G. DODD
  • Patent number: 10159760
    Abstract: Imaging agents comprising an isolated polypeptide conjugated with a radionucleide and a chelator; wherein the isolated polypeptide binds specifically to HER2, or a variant thereof; and methods for preparing and using these imaging agents.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: December 25, 2018
    Assignee: General Electric Company
    Inventors: Faisal Ahmed Syud, Brian Duh-Lan Lee, Rong Zhang, Peter Brian Iveson, Paul Schaffer, Tove Simonsson, Elin Gunneriusson, Fredrik Frejd, Lars Abrahmsen, Joachim Feldwisch, Nina Herne, Christofer Lendel