Patents by Inventor Lorenzo Williams
Lorenzo Williams 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).
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Publication number: 20220009919Abstract: The present invention relates to an improved synthesis of N-monofluoroalkyl tropanes using fluoroalkyl iodide. The invention also provides the use of such method to prepare the non-radioactive tropane intermediate FP-CIT, and its subsequent conversion to the 123I-labelled radiopharmaceutical DaTSCAN™ (123I-ioflupane). Also provided is the use of fluoroalkyl iodide in the alkylation method of the invention.Type: ApplicationFiled: February 11, 2021Publication date: January 13, 2022Inventors: Lorenzo Williams, Gunnar Keilen, Jarle Andre Haugan
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Publication number: 20160376265Abstract: The present invention relates to an improved synthesis of N-monofluoroalkyl tropanes using fluoroalkyl iodide. The invention also provides the use of such method to prepare the non-radioactive tropane intermediate FP-CIT, and its subsequent conversion to the 123I-labelled radiopharmaceutical DaTSCAN™ (123I-ioflupane). Also provided is the use of fluoroalkyl iodide in the alkylation method of the invention.Type: ApplicationFiled: June 30, 2016Publication date: December 29, 2016Inventors: Lorenzo Williams, Gunnar Keilen, Jarle Andre Haugan
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Patent number: 9468694Abstract: The invention relates to a process for preparation of a compound of formula (I): R1 is selected from C1-6alkyl, C2-6alkenyl, and C2-6alkynyl; which comprises: (i) reaction with fluoride, suitably [18F]fluoride, of a corresponding compound of formula (II): wherein R2 is selected from hydrogen, C1-10alkyl, C1-10haloalkyl, C6-14aryl, C6-14arylalkyl, —(CH2CH2O)q—CH3 wherein q is an integer of from 1 to 10; R1 is as defined for the compound of formula (I); and R3 is a leaving group. Certain novel precursors of formula (II) and radiopharmaceutical kits containing such precursors are also claimed.Type: GrantFiled: July 27, 2015Date of Patent: October 18, 2016Assignee: GE Healthcare LimitedInventors: Anthony Eamon Storey, Clare Louise Jones, Denis Raymond Christophe Bouvet, Nicolas Lasbistes, Steven Michael Fairway, Lorenzo Williams, Alexander Mark Gibson, Robert James Nairne, Farhad Karimi, Bengt Langstrom
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Publication number: 20150328344Abstract: The invention relates to a process for preparation of a compound of formula (I): R1 is selected from C1-6alkyl, C2-6alkenyl, and C2-6alkynyl; which comprises: (i) reaction with fluoride, suitably [18F]fluoride, of a corresponding compound of formula (II): wherein R2 is selected from hydrogen, C1-10alkyl, C1-10haloalkyl, C6-14aryl, C6-14arylalkyl, —(CH2CH2O)q—CH3 wherein q is an integer of from 1 to 10; R1 is as defined for the compound of formula (I); and R3 is a leaving group. Certain novel precursors of formula (II) and radiopharmaceutical kits containing such precursors are also claimed.Type: ApplicationFiled: July 27, 2015Publication date: November 19, 2015Applicants: GE HEALTHCARE AS, GE HEALTHCARE LIMITEDInventors: Anthony Eamon Storey, Clare Louise Jones, Denis Raymond Christophe Bouvet, Nicolas Lasbistes, Steven Michael Fairway, Lorenzo Williams, Alexander Mark Gibson, Robert James Nairne, Farhad Karimi, Bengt Langstrom
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Patent number: 9126961Abstract: The invention relates to a process for preparation of a compound of formula (I): R1 is selected from C1-6alkyl, C2-6alkenyl, and C2-6alkynyl; which comprises: (i) reaction with fluoride, suitably [18F]fluoride, of a corresponding compound of formula (II): wherein R2 is selected from hydrogen, C1-10alkyl, C1-10haloalkyl, C6-14aryl, C6-14arylalkyl, —(CH2CH2O)q—CH3 wherein q is an integer of from 1 to 10; R1 is as defined for the compound of formula (I); and R3 is a leaving group. Certain novel precursors of formula (II) and radiopharmaceutical kits containing such precursors are also claimed.Type: GrantFiled: March 22, 2013Date of Patent: September 8, 2015Assignees: GE Healthcare Limited, GE Healthcare ASInventors: Anthony Eamon Storey, Clare Louise Jones, Denis Raymond Christophe Bouvet, Nicholas Lasbistes, Steven Michael Fairway, Lorenzo Williams, Alexander Mark Gibson, Robert James Nairne, Farhad Karimi, Bengt Langstrom
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Patent number: 8410312Abstract: The invention relates to a process for preparation of a compound of formula (I): R1 is selected from C1-6alkyl, C2-6alkenyl, and C2-6alkynyl; which comprises: (i) reaction with fluoride, suitably [18F]fluoride, of a corresponding compound of formula (II): wherein R2 is selected from hydrogen, C1-10alkyl, C1-10haloalkyl, C6-14aryl, C6-14arylalkyl, —(CH2CH2O)q—CH3 wherein q is an integer of from 1 to 10; R1 is as defined for the compound of formula (I); and R3 is a leaving group. Certain novel precursors of formula (II) and radiopharmaceutical kits containing such precursors are also claimed.Type: GrantFiled: August 11, 2006Date of Patent: April 2, 2013Assignees: GE Healthcare Limited, GE Healthcare ASInventors: Anthony Eamon Storey, Clare Louise Jones, Denis Raymond Christophe Bouvet, Nicolas Lasbistes, Steven Michael Fairway, Lorenzo Williams, Alexander Mark Gibson, Robert James Nairne, Farhad Karimi, Bengt Langstrom
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Publication number: 20120244072Abstract: The present invention relates to an improved synthesis of N-monofluoroalkyl tropanes using fluoroalkyl iodides or fluoroalkyl sulfonate esters. The invention also provides the use of such method to prepare the non-radioactive tropane intermediate FP-CIT, and its subsequent conversion to the 123I-labelled radiopharmaceutical DaTSCAN™ (123I-ioflupane). Also provided is the use of fluoroalkyl iodides or fluoroalkyl sulfonate esters in the alkylation method of the invention.Type: ApplicationFiled: December 15, 2010Publication date: September 27, 2012Inventors: Lorenzo Williams, Gunnar Keilen, Jarle Andre Haugan
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Patent number: 8247534Abstract: The present invention addresses a novel method of preparing radiofluorinated peptide-based compounds and introducing those compounds into an automated radiosynthesis apparatus with the aid of microwave activation. The present invention further relates to obtaining radiopharmaceutical kits utilizing microwave activation technology for the preparation of obtaining peptide based compounds as well as a method for the use of preparing a peptide based compound.Type: GrantFiled: December 12, 2007Date of Patent: August 21, 2012Assignee: GE Healthcare ASInventor: Lorenzo Williams
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Patent number: 8241606Abstract: The present invention encompasses a method of preparing a radiofluorinated compound by adding a photolabile protecting group, R, to an aminoxy group of a peptide based compound wherein the peptide based compound reacts with a light of a specified wavelength in an automated radiosynthesis apparatus to form a radiofluorinated compound. The present invention further relates to a photolabile peptide based compound.Type: GrantFiled: December 18, 2007Date of Patent: August 14, 2012Assignee: GE Healthcare ASInventor: Lorenzo Williams
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Publication number: 20100234611Abstract: The invention relates to a process for preparation of a compound of formula (I): R1 is selected from C1-6alkyl, C2-6alkenyl, and C2-6alkynyl; which comprises: (i) reaction with fluoride, suitably [18F]fluoride, of a corresponding compound of formula (II): wherein R2 is selected from hydrogen, C1-10alkyl, C1-10haloalkyl, C6-14aryl, C6-14arylalkyl, —(CH2CH2O)q—CH3 wherein q is an integer of from 1 to 10; R1 is as defined for the compound of formula (I); and R3 is a leaving group. Certain novel precursors of formula (II) and radiopharmaceutical kits containing such precursors are also claimed.Type: ApplicationFiled: August 11, 2006Publication date: September 16, 2010Applicants: GE HEALTHCARE LIMITED, GE HEALTHCARE ASInventors: Anthony Eamon Storey, Clare Louise Jones, Denis Raymond Christophe Bouvet, Nicolas Lasbistes, Steven Michael Fairway, Lorenzo Williams, Alexander Mark Gibson, Robert James Nairne, Farhad Karimi, Bengt Langstrom
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Patent number: 7678292Abstract: An ionic dopant comprising a sulfur or a phosphorus containing anion with a randon cation, for use in a smectic A liquid crystal composition. The cation preferably comprises a quaternary ammonium cation.Type: GrantFiled: September 2, 2003Date of Patent: March 16, 2010Assignee: Polydisplay ASAInventors: Kjetil A. Netland, Maxim V. Mitrokhine, Lorenzo Williams, Kjetil H. Holm, Fiona J. Farrand
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Publication number: 20100022746Abstract: The present invention encompasses a method of preparing a radiofluorinated compound by adding a photolabile protecting group, R, to an aminoxy group of a peptide based compound wherein the peptide based compound reacts with a light of a specified wavelength in an automated radiosynthesis apparatus to form a radiofluorinated compound. The present invention further relates to a photolabile peptide based compound.Type: ApplicationFiled: December 18, 2007Publication date: January 28, 2010Inventor: Lorenzo Williams
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Publication number: 20100016551Abstract: The present invention addresses a novel method of preparing radiofluorinated peptide-based compounds and introducing those compounds into an automated radiosynthesis apparatus with the aid of microwave activation. The present invention further relates to obtaining radiopharmaceutical kits utilizing microwave activation technology for the preparation of obtaining peptide based compounds as well as a method for the use of preparing a peptide based compound.Type: ApplicationFiled: December 12, 2007Publication date: January 21, 2010Inventor: Lorenzo Williams
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Patent number: 7397530Abstract: This invention relates to a method for encapsulation of liquid crystals to form spherical particles with a narrow size distribution. More specific, this invention relates to a method for encapsulation of liquid crystals that are suitable to be employed in liquid crystal displays, including displays intended to be used in large boards outdoors.Type: GrantFiled: July 14, 2005Date of Patent: July 8, 2008Assignee: Polydisplay ASAInventors: Anne Dalager Dyrli, Ruth Baumberger Schmid, Cecilie Kristiansen, Jan K. Nielsen, Maxim Miltrokhin, Lorenzo Williams
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Publication number: 20070023732Abstract: This invention relates to a method for encapsulation of liquid crystals to form spherical particles with a narrow size distribution. More specific, this invention relates to a method for encapsulation of liquid crystals that are suitable to be employed in liquid crystal displays, including displays intended to be used in large boards outdoors.Type: ApplicationFiled: July 14, 2005Publication date: February 1, 2007Inventors: Anne Dyrli, Ruth Schmid, Cecilie Kristiansen, Jan Nielsen, Maxim Miltrokhin, Lorenzo Williams
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Publication number: 20060091358Abstract: An ionic dopant comprising a sulfur or a phosphorus containing anion with a randon cation, for use in a smectic A liquid crystal composition. The cation preferably comprises a quaternary ammonium cation.Type: ApplicationFiled: September 2, 2003Publication date: May 4, 2006Inventors: Kjetil Netland, Maxim Mitrokhine, Lorenzo Williams, Kjetil Holm, Fiona Farrand
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Patent number: 6858434Abstract: A method for sequentially performing a synthesis, separation and screening of chemical entities, especially a combinatorial library, is described. The method utilises a bulk of a stationary phase (e.g. silica gel, aluminium oxide, cellulose, etc. for example arranged on a backing) for the performance of the synthesis, separation and screening. The technique described enables a rapid route from synthesis to the testing of chemical compounds. Screening can be performed without need for reaction work-up. Preferred screening methods are those used to determine the biological activity of the compounds.Type: GrantFiled: October 6, 2000Date of Patent: February 22, 2005Assignee: Sinvent ASInventor: Lorenzo Williams
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Patent number: D684937Type: GrantFiled: October 17, 2011Date of Patent: June 25, 2013Assignee: Group-A Autosports, Inc.Inventors: David Hsu, Clinton Yee, Ming Wong, Anthony Lorenzo Williams