Patents Represented by Attorney Craig Bohlken
  • Patent number: 7875701
    Abstract: The invention relates to conjugates of formula (III) or (IIIa), or a salt thereof, their use as radiopharmaceuticals, processes for their preparation, and synthetic intermediates used in such processes.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: January 25, 2011
    Assignee: GE Healthcare AS
    Inventors: Magne Solbakken, Bente Arbo, Alan Cuthbertson, Alexander Gibson
  • Patent number: 7811551
    Abstract: The invention relates to compounds of formula (I): and their use as targeting vectors that bind to receptors associated with angiogenesis. Such compounds may thus be used for diagnosis or therapy of, for example, malignant diseases, heart diseases, endometriosis, inflammation-related diseases, rheumatoid arthritis and Kaposi's sarcoma.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: October 12, 2010
    Assignee: GE Healthcare AS
    Inventors: Alan Cuthbertson, Magne Solbakken
  • Patent number: 7785566
    Abstract: The invention comprises pharmaceuticals of formula (I) Z-(L)n-V, wherein V denotes a peptide, L denotes an optional linker, Z denotes a group that optionally can carry an imaging moiety M, n denotes 0 or 1. The pharmaceuticals are active as therapeutic agents for the treatment of heart failure, cardiac arrhythmias and diseases were fibrosis is prominent such as COPD, liver fibrosis and atherosclerosis and are also useful as diagnostic agents for the diagnosis of heart failure and diseases were fibrosis is prominent such as COPD, liver fibrosis and atherosclerosis.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: August 31, 2010
    Assignee: GE Healthcare, Inc.
    Inventors: Alan Cuthbertson, Bard Indrevoll, Morten Eriksen
  • Patent number: 7767796
    Abstract: The present invention provides tetra-amine chelator conjugates with biological targeting moieties, linked via a linker group and technetium complexes thereof as radiopharmaceuticals. The linker group is such that the chelator is mono-functionalized at the bridgehead position and provides both flexibility and a lack or aryl groups, to minimize lipophilicity and steric hulk. Protected versions of the chelators are provided which permit conjugation with a wide range of targeting molecules without interfering reactions with the amine nitrogens of the tetra-amine chelator. Syntheses of the functionalised chelators are described, together with bifunctional chelate precursors. Radiopharmaceutical compositions comprising the technetium metal complexes of the invention are described, together with non-radioactive kits for the preparation of such radiopharmaceuticals.
    Type: Grant
    Filed: July 19, 2005
    Date of Patent: August 3, 2010
    Assignee: GE Healthcare Limited
    Inventors: Anthony Eamonn Storey, Harry John Wadsworth, Nigel Anthony Powell, Philip Duncanson
  • Patent number: 7763234
    Abstract: A pharmaceutical of the general formula Z—(L)n-V, wherein V denotes an amino acid sequence X1-X2-Val-Tyr-Ile-His-Pro-X8-X9-X10; L denotes a bond or a linker; Z denotes a group that optionally can carry an imaging moiety M; X1 denotes an amino acid; X2 denotes Arg or N-alkylated Arg or a mimetic of Arg; X8, X9 and X10 constitute an ACE cleavage site; Z forms a bond with the amino acid X1 optionally through the linker L; and M where denotes an imageable moiety capable of detection either directly or indirectly in a diagnostic imaging procedure.
    Type: Grant
    Filed: March 3, 2005
    Date of Patent: July 27, 2010
    Assignee: GE Healthcare AS
    Inventor: Dagfinn Lovhaug
  • Patent number: 7750163
    Abstract: Disclosed are cyanine dyes that are useful for labeling and detecting biological and other materials. The dyes are of formula (I) in which groups R3 and R4 are attached to the Z1 ring structure and groups R5 and R6 are attached to the Z2 ring structure, and n=1, 2 or 3; Z1 and Z2 independently represent the carbon atoms necessary to complete a one ring, or two-fused ring aromatic system; at least one of groups R1, R2, R3, R4, R5, R6 and R7 is the group -E-F where E is a single bond or a spacer group and F is a target bonding group; one or more of groups R11, R12, R13 and R14 are independently selected from the group —(CH2)k—W, where W is sulphonic acid or phosphonic acid and k is an integer from 1 to 10.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: July 6, 2010
    Assignees: GE Healthcare U.K. Limited, Carnegie Mellon University
    Inventors: Richard M. West, Nigel Bosworth, Ratnakar B. Mujumdar
  • Patent number: 7737252
    Abstract: This invention relates to new peptide-based compounds and their use in therapeutically effective treatments as well as for diagnostic imaging techniques. More specifically the invention relates to the use of such peptide-based compounds used as targeting vectors that bind to receptors associated with angiogenesis, in particular the ?v?3 integrin receptor. Such contrast agents may thus be used for diagnosis of for example malignant diseases, heart diseases, inflammation-related diseases, rheumatoid arthritis and Kaposi's sarcoma. Moreover such compounds may also be used in therapeutic treatment of these diseases.
    Type: Grant
    Filed: March 24, 2003
    Date of Patent: June 15, 2010
    Assignee: GE Healthcare AS
    Inventor: Alan Cuthbertson
  • Patent number: 7714115
    Abstract: The invention provides a method for the synthesis of an 18F-labelled product comprising deprotected of a protected 18F-labelled compound using a deprotection agent comprising a weak acid and wherein neutralisation and buffering of the deprotected product are carried out by the addition of a neutralisation agent. The deprotected product is buffered in a pH range suitable for subsequent autoclaving and formulation into an injectable radiopharmaceutical.
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: May 11, 2010
    Assignee: GE Healthcare Limited
    Inventors: Julian Grigg, Nigel Osborn
  • Patent number: 7667011
    Abstract: Methods and reagents for photo-initiated carbonylation with carbon-isotope labeled carbon monoxide using alkyl/aryl iodides with water pretreated by a base are provided. The resultant carbon-isotope labeled acids are useful as radiopharmaceuticals, especially for use in Positron Emission Tomography (PET). Associated kits for PET studies are also provided.
    Type: Grant
    Filed: December 5, 2005
    Date of Patent: February 23, 2010
    Inventors: Bengt Langstrom, Oleksiy Itsenko
  • Patent number: 7662859
    Abstract: The present invention relates to a class of compounds and to diagnostic compositions containing such compounds where the compounds are iodine containing compounds. More specifically the iodine containing compounds are chemical compounds containing an aliphatic central moiety allowing for the arrangement of three iodinated phenyl groups bound thereto. The invention also relates to methods of diagnosis and imaging employing such diagnostic compositions as contrast agents in particular in X-ray imaging, and to contrast media containing such compounds.
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: February 16, 2010
    Assignee: GE Healthcare AS
    Inventor: Hanno Priebe
  • Patent number: 7659317
    Abstract: Methods and reagents for labeling synthesis of organohalides by transition metal mediated carbonylation reactions using carbon-isotope labeled carbon monoxide are provided. The resultant carbon-isotope labeled organohalides are useful as radiopharmaceuticals, especially for use as precursors in Positron Emission Tomography (PET). Associated PET tracers and kits for PET studies are also provided.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: February 9, 2010
    Assignee: GE Healthcare Limited
    Inventors: Jonas Eriksson, Bengt Langstrom, Gunnar Antoni
  • Patent number: 7642375
    Abstract: Radiolabelled acid chlorides may be synthesised by reacting a radiolabelled carboxylic acid with a solid-phase supported chlorinating agent.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: January 5, 2010
    Assignee: Hammersmith Imanet Limited
    Inventors: David Robert Turton, Edward Robins
  • Patent number: 7642373
    Abstract: Decomposition of iodonium salts by a free radical process has been identified as a significant factor in the observed yield variability of fluoridation reactions using said iodonium salts. Accordingly, the inclusion of a free radical trap in the reaction mixture blocks the radical chain decomposition pathway for iodonium salts such that only the reaction leading to fluoridation can occur and the yield of aryl fluoride becomes high and reproducible. The reaction may also be carried out on solid phase. In both the solution and the solid phase the preferred method of the present invention is radiofluoridation.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: January 5, 2010
    Assignee: GE Healthcare Limited
    Inventors: Harry John Wadsworth, David Arthur Widdowson, Emmanuelle Wilson, Michael Andrew Carroll
  • Patent number: 7626052
    Abstract: Methods and reagents for photo-initiated carbonylation with carbon-isotope labeled carbon monoxide using alkyl/aryl iodides with alcohols pretreated by a base are provided. The resultant carbon-isotope labeled esters are useful as radiopharmaceuticals, especially for use in Positron Emission Tomography (PET). Associated kits for PET studies are also provided.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: December 1, 2009
    Assignee: GE Healthcare Limited
    Inventors: Bengt Langstrom, Oleksiy Itsenko, Tor Kihlberg
  • Patent number: 7608243
    Abstract: The invention relates to new peptide-based compounds and their use in diagnostic optical imaging. More specifically the invention relates to the use of such peptide-based compounds as targeting vectors that bind to receptors associated with angiogenesis. The compounds are labeled with fluorescein and may be used as contrast agents in optical imaging in diagnosis of angiogenesis-related diseases.
    Type: Grant
    Filed: July 7, 2004
    Date of Patent: October 27, 2009
    Assignee: GE Healthcare AS
    Inventors: Alan Cuthbertson, Bard Indrevoll, Magne Solbakken
  • Patent number: 7608242
    Abstract: A peptide-chelate conjugate with affinity for the ST receptor is disclosed, wherein the chelate is tetradentate. The peptide-chelate conjugate of the invention may be labelled with a radiometal to provide a metal complex. A radiopharmaceutical composition comprising the metal complex is provided. which is suitable for the diagnostic imaging of colorectal cancer. Also provided for in the invention is a kit for the preparation of the radiopharmaceutical preparation.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: October 27, 2009
    Assignee: GE Healthcare Limited
    Inventors: Alan Cuthbertson, Marivi Mendizabal, Mark Dixon, Anthony E. Storey, Edward R. Bacon, Vinay Chandrakant Desai, Sudhakar Kasina, Henry Raphael Wolfe
  • Patent number: 7597875
    Abstract: The present invention relates to improved chelator conjugates with biological targeting molecules, suitable for forming metal complexes with radiometals. The radiometal complexes, especially with the radiometal99mTc, are useful as radiopharmaceuticals.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: October 6, 2009
    Assignee: GE Healthcare Limited
    Inventors: Colin Mill Archer, Harry John Wadsworth, Torgrim Engell
  • Patent number: 7597877
    Abstract: Method and apparatus for continuous infusion to a subject of dispersions in which the dispersed phase is susceptible to flotation or sedimentation. The dispersion is controllably delivered from an upper or lower extremity of an essentially vertically positioned delivery vessel, e.g. syringe 2, and is then admixed with flushing medium, e.g. from infusion minibag 8, prior to administration to the subject. Vertical positioning of the delivery device maximises the distance through which flotation or sedimentation may occur, thereby substantially reducing the effects of separation over a given period of time compared to use of a corresponding horizontal delivery vessel such as a syringe placed in a conventional syringe driver.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: October 6, 2009
    Assignee: GE Healthcare AS
    Inventors: Ingrid Henriksen, Tore Omtveit, Vera Kasparkova, Anne Kjersti Fahlvik
  • Patent number: 7575891
    Abstract: The present invention provides a method of purifying diphtheria toxin comprising (1) fermenting a microorganism strain capable of producing diphtheria toxin using glucose as a carbon source, said method comprising adding glucose to a growing culture whereby the addition of glucose maintains microorganism growth effective to support diphtheria toxin production; and (2) purifying the diphtheria toxin from the culture by contacting a toxin containing preparation derived therefrom with an ion exchange matrix, eluting a fraction containing the toxin, applying the eluate to a hydrophobic matrix, and eluting a fraction containing the toxin.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: August 18, 2009
    Assignee: GE Healthcare AS
    Inventors: Henry Wolfe, Fahar Merchant, Rosemina Merchant, Christopher Black, Harry Storflor, Geir Stokke, Halldis Hellebust
  • Patent number: 7553942
    Abstract: Methods and reagents for photo-initiated carbonylation with carbon-isotope labeled carbon monoxide using weakly nucleophilic amines and alkyl/aryl iodides are provided. The resultant carbon-isotope labeled amides are useful as radiopharmaceuticals, especially for use in Positron Emission Tomography (PET). Associated kits for PET studies are also provided.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: June 30, 2009
    Assignee: GE Healthcare Limited
    Inventors: Oleksiy Itsenko, Tor Kihlberg, Bengt Langstrom