Patents by Inventor Steve Lignon

Steve Lignon 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: 11094424
    Abstract: The present invention provides a system for evaporating a radioactive fluid, a method for the synthesis of a radiolabelled compound including this system, and a cassette for the synthesis of a radiolabelled compound comprising this system. The present invention provides advantages over known methods for evaporation of a radioactive fluid as it reduces drastically the amount of radioactive gaseous chemicals that are released in the hot cell. It is gentler and more secure compared to the known process and provides access to radiosyntheic processes that may not been acceptable for safety reasons related to release of volatile radioactive gases during evaporation. In addition, the process yields are higher because the radioactive volatiles are labelled intermediate species.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: August 17, 2021
    Assignee: GE HEALTHCARE LIMITED
    Inventors: Xavier Franci, Steve Lignon, Audrey Lange
  • Patent number: 10703771
    Abstract: The present invention provides a new chemical process, a new cassette configuration, and new software for the automated production of multiple batches of an [18F]labelled compound on a single cassette. The invention allows one synthesizer in one hot cell to produce sequentially a plurality of batches of [18F]-labelled PET tracer in the same day. In particular, the present invention provides a novel arrangement useful for the trapping of [18F]fluoride and recovery of [18O]water.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: July 7, 2020
    Assignee: GE HEALTHCARE LIMITED
    Inventors: Xavier Franci, Steve Lignon, Audrey Marie Lange, Nicolas Verbrugge
  • Patent number: 10662125
    Abstract: The present invention provides a new chemical process, a new cassette configuration, and new software for the automated production of multiple batches of an [18F]-labelled compound on a single cassette. The invention allows one synthesizer in one hot cell to produce sequentially a plurality of batches of [18F]-labelled PET tracer in the same day. In particular, the present invention provides a novel arrangement useful for purifying two consecutive batches of a reaction mixture comprising an 18F-labelled compound.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: May 26, 2020
    Assignee: GE HEATLHCARE LIMITED
    Inventors: Xavier Franci, Steve Lignon, Audrey Marie Lange, Nicolas Verbrugge
  • Publication number: 20200043620
    Abstract: The present invention provides a system for evaporating a radioactive fluid, a method for the synthesis of a radiolabelled compound including this system, and a cassette for the synthesis of a radiolabelled compound comprising this system. The present invention provides advantages over known methods for evaporation of a radioactive fluid as it reduces drastically the amount of radioactive gaseous chemicals that are released in the hot cell. It is gentler and more secure compared to the known process and provides access to radiosyntheic processes that may not been acceptable for safety reasons related to release of volatile radioactive gases during evaporation. In addition, the process yields are higher because the radioactive volatiles are labelled intermediate species.
    Type: Application
    Filed: August 29, 2019
    Publication date: February 6, 2020
    Inventors: Xavier FRANCI, Steve LIGNON, Audrey LANGE
  • Patent number: 10525435
    Abstract: The present invention provides a system for the production of a radiopharmaceutical including a radiosynthesis apparatus and a disposable cassette. The system of the invention includes a device that enables a position on the cassette to be freed for inclusion of an additional reagent vial. With the system of the invention a broader range of radiochemical syntheses can be envisaged using the cassette.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: January 7, 2020
    Assignee: GE HEALTHCARE LIMITED
    Inventors: Xavier Franci, Philippe Dumont, Steve Lignon, Audrey Marie Lange, Nicolas Verbrugge
  • Publication number: 20180008949
    Abstract: The present invention provides a system for the production of a radiopharmaceutical including a radiosynthesis apparatus and a disposable cassette. The system of the invention includes a device that enables a position on the cassette to be freed for inclusion of an additional reagent vial. With the system of the invention a broader range of radiochemical syntheses can be envisaged using the cassette.
    Type: Application
    Filed: March 10, 2016
    Publication date: January 11, 2018
    Applicant: GE Healthcare Limited
    Inventors: Xavier Franci, Philippe Dumont, Steve Lignon, Audrey Marie Lange, Nicolas Verbrugge
  • Publication number: 20170320901
    Abstract: The present invention provides a new chemical process, a new cassette configuration, and new software for the automated production of multiple batches of an [18F]labelled compound on a single cassette. The invention allows one synthesizer in one hot cell to produce sequentially a plurality of batches of [18F]-labelled PET tracer in the same day. In particular, the present invention provides a novel arrangement useful for the trapping of [18F]fluoride and recovery of [18O]water.
    Type: Application
    Filed: November 12, 2015
    Publication date: November 9, 2017
    Applicant: GE Healthcare Limited
    Inventors: Xavier Franci, Steve Lignon, Audrey Marie Lange, Nicolas Verbrugge
  • Publication number: 20170313632
    Abstract: The present invention provides a new chemical process, a new cassette configuration, and new software for the automated production of multiple batches of an [18F]-labelled compound on a single cassette. The invention allows one synthesizer in one hot cell to produce sequentially a plurality of batches of [18F]-labelled PET tracer in the same day. In particular, the present invention provides a novel arrangement useful for purifying two consecutive batches of a reaction mixture comprising an 18F-labelled compound.
    Type: Application
    Filed: November 12, 2015
    Publication date: November 2, 2017
    Applicant: GE Healthcare Limited
    Inventors: Xavier Franci, Steve Lignon, Audrey Marie Lange, Nicolas Verbrugge
  • Publication number: 20160260511
    Abstract: The present invention provides a system for evaporating a radioactive fluid, a method for the synthesis of a radiolabelled compound including this system, and a cassette for the synthesis of a radiolabelled compound comprising this system. The present invention provides advantages over known methods for evaporation of a radioactive fluid as it reduces drastically the amount of radioactive gaseous chemicals that are released in the hot cell. It is gentler and more secure compared to the known process and provides access to radiosyntheic processes that may not been acceptable for safety reasons related to release of volatile radioactive gases during evaporation. In addition, the process yields are higher because the radioactive volatiles are labelled intermediate species.
    Type: Application
    Filed: October 17, 2014
    Publication date: September 8, 2016
    Inventors: Xavier Franci, Steve Lignon, Audrey Lange
  • Publication number: 20150175553
    Abstract: The present invention provides a simplified method for the preparation of 18F-labelled compounds that is particularly suitable for automation. The method of the invention is specifically applicable where the 18F-labelled compound is prepared from a labelling precursor that comprises protecting groups and wherein the synthetic route to the final compound includes removal of these protecting groups by acid or alkaline hydrolysis. Also provided by the present invention is a cassette useful for carrying out the method of the invention in an automated manner.
    Type: Application
    Filed: November 29, 2012
    Publication date: June 25, 2015
    Applicant: GE HEALTHCARE LIMITED
    Inventors: Ludovic Wouters, Steve Lignon
  • Patent number: 8366934
    Abstract: A method extracts out of an aqueous solution, concentrate and/or reformulate [18F] fluorides without any evaporation step. The eluting solution is a low water content, preferably <3% water, organic solution containing at least: a first compound (A) which is a tertiary alcohol-function bearing molecule, a second compound (B) which is a phase transfer agent suitable for radiolabeling and which is necessary to the anion exchange process.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: February 5, 2013
    Assignees: Trasis S.A., Universite de liege
    Inventors: Joel Aerts, Christian LeMaire, Steve Lignon, André Luxen, Jean-Luc Morelle, Gauthier Philippart, Samuel Voccia
  • Publication number: 20110006011
    Abstract: A method extracts out of an aqueous solution, concentrate and/or reformulate [18F] fluorides without any evaporation step. The eluting solution is a low water content, preferably <3% water, organic solution containing at least: a first compound (A) which is a tertiary alcohol-function bearing molecule, a second compound (B) which is a phase transfer agent suitable for radiolabeling and which is necessary to the anion exchange process.
    Type: Application
    Filed: February 19, 2008
    Publication date: January 13, 2011
    Applicants: TRASIS S.A., UNIVERSITE DE LIEGE
    Inventors: Joel Aerts, Christian Lemaire, Steve Lignon, Andre Luxen, Jean-Luc Morelle, Gauthier Philippart, Samuel Voccia