Patents Represented by Attorney Li Cai
  • Patent number: 7978309
    Abstract: A clamping apparatus capable of fixing a roll film is disclosed. The clamping apparatus includes: a carrier comprising a slot; a cover positioned in the slot; and a cannelure formed between the cover and the carrier, for guiding the film inserted from the first film door to a predetermined position. The cover includes: an upper ramp, positioned on one side of the cannelure opening, for guiding the film from the first film door to the cannelure opening, wherein a first edge of the upper ramp is near the cannelure opening, and a second edge of the upper ramp is away from the slot opening and inclines to the first edge of the upper ramp.
    Type: Grant
    Filed: July 2, 2006
    Date of Patent: July 12, 2011
    Assignee: Lite-On Technology Corporation
    Inventors: Ta-Yi Lee, Jeicy Lee, Jy Tang
  • Patent number: 7273728
    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, the 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: August 15, 2005
    Date of Patent: September 25, 2007
    Assignee: GE Healthcare AS
    Inventors: Henry Wolfe, Fahar Merchant, Rosemina Merchant, Christopher Black, Harry Storflor, Geir Stokke, Halldis Hellebust
  • Patent number: 7264792
    Abstract: A process for the production of an 18F-labelled tracer which comprises treatment of a solid support-bound precursor of formula (I): SOLID SUPPORT-LINKER-SO2—O-TRACER (I) with 18F— to produce the labelled tracer of formula (II)
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: September 4, 2007
    Assignee: GE Healthcare Limited
    Inventors: Alexander Mark Gibson, Lynda Jane Brown, Richard Charles Downie Brown
  • Patent number: 7223891
    Abstract: The invention relates to a process for the production of an [18F]fluorohaloalkane which comprises treatment of a solid support-bound precursor of formula (I): SOLID SUPPORT-LINKER-SO2—O—(CH2)nX (I) wherein n is an integer of from (1) to (7) and X is chloro, bromo or iodo; with 18F? to produce the [18F]fluorohaloalkane of formula (II) 18F—(CH2)n—X (II) wherein n and X are as defined for the compound of formula (I), optionally followed by (i) removal of excess 18F?, for example by ion-exchange chromatography; and/or (ii) removal of organic solvent.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: May 29, 2007
    Assignee: Hammersmith Imanet Ltd.
    Inventors: Frank Brady, Sajinder Kaur Luthra, Yongjun Zhao
  • Patent number: 7198776
    Abstract: The invention relates to metal complex compounds, contrast agents for MRI and in vivo NMR markers for NMR spectroscopy comprising said metal complex compounds and methods for in vivo determination of physiological parameters, e.g. enzyme activity or pH using said metal complex compounds.
    Type: Grant
    Filed: November 28, 2002
    Date of Patent: April 3, 2007
    Assignee: GE Healthcare AS
    Inventors: Jo Klaveness, Pal Rongved
  • Patent number: 7182934
    Abstract: The invention provides a composition of matter of formula I V-L-R ??(I) where V is an organic group having binding affinity for an angiotensin II receptor site, L is a linker moiety or a bond, and R is a moiety detectable in in vivo imaging of a human or animal body, with the provisos that where V is angiotensin or a peptidic angiotensin derivative or analog then V-L-R is other than a non-metal radionuclide substituted peptide (eg 125I substituted angiotensin II) and L-V is other than simply a peptide with a chelating agent amide bonded to a side chain thereof. This composition of matter may be used to image cardiovascular diseases and disorders.
    Type: Grant
    Filed: April 18, 2005
    Date of Patent: February 27, 2007
    Assignee: GE Healthcare AS
    Inventors: Jo Klaveness, Anne Naevestad, Alan Cuthbertson
  • Patent number: 7173061
    Abstract: The invention provides compounds of formula (I) or a salt thereof, radiolabelled versions thereof, and their use in the diagnosis or in vivo imaging of Amyloid-associated diseases such as Alzheimer's disease
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: February 6, 2007
    Assignee: GE Healthcare Limited
    Inventors: Denis Raymond Christophe Bouvet, Harry John Wadsworth
  • Patent number: 7115249
    Abstract: The invention relates to compounds of formula (I); wherein R1 and R2 independently selected from C1-6 alkyl; P1, P2, P3, and P4 are each independently hydrogen or a protecting group; and their use in the preparation of 18F-labelled 6-L-fluorodopa
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: October 3, 2006
    Assignees: GE Healthcare Ltd., Hammersmith Imanet Ltd.
    Inventors: Sajinder Kaur Luthra, Frank Brady, Harry John Wadsworth
  • Patent number: 7060731
    Abstract: This application relates to the use of certain amines of formula (I) for combatting and preventing systemic and local complement activation, and in particular to the use of meglumine and derivatives and optionally salts thereof in combatting and preventing said activation. The amines are also of use in combatting activation of the kinin/kallikrein system or blood coagulation system.
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: June 13, 2006
    Assignee: Amersham Health AS
    Inventors: Anne Juelsrud, Gunn Ragnhild Hoigaard Bjerke
  • Patent number: 7052672
    Abstract: The present invention relates to stabilized 99mTc radiopharmaceutical compositions, which include both a radioprotectant and one or more antimicrobial preservative(s), and hence have an extended lifetime of use. The radioprotectant is ascorbic acid, para-aminobenzoic acid, gentisic acid or a salt thereof with a biocompatible cation, and the antimicrobial preservative is one or more compound from the paraben series of preservatives. The invention is particularly useful for cationic, lipophilic 99mTc heart imaging agents such as Myoview™.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: May 30, 2006
    Assignee: GE Healthcare Limited
    Inventors: Alan Michael Forster, David Edwards, Ole Kristian Hjelstuen
  • Patent number: 7049289
    Abstract: Synthetic analogues of lysine and glutamine are provided which function as substrates for the fibrin-stabilising enzyme Factor XIIIa even when labelled with a detectable moiety. The use of suitable protecting groups provides compounds which possess reduced susceptibility to in vivo metabolism especially by peptidases, and are hence useful agents for the diagnosis of thrombosis, embolism, atherosclerosis, inflammation or cancer.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: May 23, 2006
    Assignee: Amersham PLC
    Inventors: Anthony Eamon Storey, Marivi Mendizabal, Susan Champion, Alex Gibson, Benedicte Guilbert, Ian Andrew Wilson, Peter Knox
  • Patent number: 7014839
    Abstract: The present invention relates to the use of particulate materials as contrast agents in in vivo light imaging.
    Type: Grant
    Filed: November 1, 2002
    Date of Patent: March 21, 2006
    Assignee: Amersham Health AS
    Inventors: Jo Klaveness, Bjorn Fuglaas, Pål Rongved, Edvin Johannesen, Paul Mark Henrichs, Wolfgang Hans Heinrich Gunther, Edward Richard Bacon, John Luke Toner, Gregory Lynn McIntire, Vinay C. Desai
  • Patent number: 6974882
    Abstract: A process for the preparation of iodixanol by dimerization of 5-acetamido-N,N?-bis(2,3-dihydroxypropyl)-2,4,6-triiodo-isophthalamide (“Compound A”) in which, after the dimerization step, unreacted Compound A is precipitated from the reaction mixture and recovered for re-use. The process substantially increases the net yield of iodixanol and simplifies its purification.
    Type: Grant
    Filed: August 6, 2001
    Date of Patent: December 13, 2005
    Assignee: Amersham Health AS
    Inventor: Ole Magne Homestad
  • Patent number: 6962803
    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: October 22, 2003
    Date of Patent: November 8, 2005
    Assignee: Amersham Health AS
    Inventors: Henry Wolfe, Fahar Merchant, Rosemina Merchant, Christopher Black, Harry Storflor, Geir Stokke, Halldis Hellebust
  • Patent number: 6921525
    Abstract: The invention provides a composition of matter of the formula (I): V-L-R where V is an organic group having binding affinity for an angiotensin II receptor site, L is a linker moiety or a bond, and R is a moiety detectable in in vivo imaging of a human or animal body, with the provisos that where V is angiotensin or a peptidic angiotensin derivative or analog then V-L-R is other than a non-metal radionuclide substituted peptide (e.g. 125I substituted angiotensin II) and L-V is other than simply a peptide with a chelating agent amide bonded to a side chain thereof. This composition of matter may be used to image cardiovascular diseases and disorders.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: July 26, 2005
    Assignee: Amersham Health AS
    Inventors: Jo Klaveness, Anne Naevestad, Alan Cuthbertson
  • Patent number: 6906171
    Abstract: The synthesis of peptides comprising disulphide bridges is challenging since it is difficult to ensure that the correct cysteine residues combine to form the desired disulphide bridges. The present invention describes novel protection techniques useful in the preparation of peptides. Described is a process for the deprotection of an Acm-, MBzl- and/or tBu-protected thiol which comprises reacting said protected thiol with an acid in the presence of an oxidising agent at a temperature sufficient to effect deprotection and generation of disulphide bonds.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: June 14, 2005
    Assignee: Amersham Health AS
    Inventor: Alan Cuthbertson
  • Patent number: 6875420
    Abstract: Disclosed herein are agents for enhancing the contrast in an ultrasound image. These agents are extremely small bubbles, or “microbubbles,” comprised of specially selected gases. The microbubbles described herein exhibit long life spans in solution and may be produced at a size small enough to traverse the lungs, thus enabling improved ultrasound imaging of the cardiovascular system and other vital organs. Also disclosed herein is a method for selecting gases from which contrast agents may be produced. The method is based on calculations using inherent physical properties of gases and describes a means to associate the properties of a gas with the time for dissolution of microbubbles comprised of the gas.
    Type: Grant
    Filed: July 18, 1997
    Date of Patent: April 5, 2005
    Assignee: Amersham Health AS
    Inventor: Steven C. Quay
  • Patent number: 6811766
    Abstract: A combined preparation comprising: i) an ultrasound contrast agent capable of accumulation in tissue microvasculature; and ii) a pharamacologically effective amount of a vasodilator drug may be used in perfusion imaging, especially of the myocardium. The contrast agent accumulates in tissue in concentrations related to the regional rate of tissue perfusion, and the vasodilator drug enhances distinction between normally perfused and underperfused tissue.
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: November 2, 2004
    Assignee: Amersham Health AS
    Inventors: Morten Eriksen, Jonny Østensen, Sigmund Frigstad, Pål Rongved
  • Patent number: 6806045
    Abstract: A method for the identification and characterization of a receptor in target tissue for which a selected vector has affinity, wherein a transfected cell line expressing the receptor is added to a suspension of encapsulated microbubbles to which the selected vector is coupled and allowing the microbubbles and cells coupled thereto to float to the surface of the suspension. Upon isolating the microbubble-bound cells at the surface, these may be cultured to study the receptor, or cells may be lysed, amplifying the receptor-encoding cDNA and sequencing the cDNA.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: October 19, 2004
    Assignee: Amersham Health AS
    Inventors: Mari Ann Kulseth, Dagfinn Lovhaug, Aslak Godal
  • Patent number: RE38856
    Abstract: The invention provides a process by which ultra low salt content triiodinated aromatic compounds may be isolated from a highly acidic hot triiodination raction reaction medium in a straightforward fashion. The process involves increasing the pH to above 5 a value in the range of 3 to 7 with sodium hydroxide, addition of sodium bisulphite and/or sodium dithionite, addition of seed crystals, cooling slowly, and washing the collected precipitate with water.
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: October 25, 2005
    Assignee: Amersham Health AS
    Inventors: William Thielking, Einar Odd Ingvoldstad, Trygve Gulbrandsen