Patents by Inventor Kai Licha

Kai Licha 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).

  • Publication number: 20060039863
    Abstract: This invention relates to the use of conjugates of cyanine dyes with an angiogenesis specific binding component preferably with an EB-D fibronectin specific binding component for the diagnosis of micrometastasis and small proliferative lesions, in particular primary tumors, precancerosis, dysplasia, metaplasia, inflammatory lesions, e.g. psoriasis, psoriatic arthritis and/or rheumatoid arthritis, endometriotic lesions, and ocular diseases associated with angiogenesis.
    Type: Application
    Filed: July 20, 2005
    Publication date: February 23, 2006
    Inventors: Michael Schirner, Kai Licha, Peter Hauff, Christin Perlitz
  • Publication number: 20060036072
    Abstract: The invention relates to compounds for tumor diagnosis that consist of conjugates of dyes with short-chain peptides, which are derived from vaso-active intestinal peptide, somatostatin or neurotensin, the use of these compounds as optical diagnostic agents, and diagnostic agents that contain these compounds.
    Type: Application
    Filed: July 25, 2003
    Publication date: February 16, 2006
    Applicant: Institut fur Diagnostikforschung GmbH
    Inventors: Kai Licha, Andreas Becker, Wolfhard Semmler, Bertram Wiedenmann, Carsten Hessenius, Rudolf Volkmer-Engert, Jens Schneider-Mergner
  • Publication number: 20050226815
    Abstract: A near infrared fluorescent contrast agent which is excellent in permeability in a living tissue and enables specific imaging of tumor and/or blood vessel, comprising a compound represented by formula (I) or a pharmaceutically acceptable salt thereof, wherein R1, R2, R7, and R8 represent a C1-C10 alkyl group or the like; R3, R4, R5, R6, R9, R10, R11, and R12 represent a hydrogen atom, a C1-C6 alkyl group, an aryl group or the like; X1 and X2 represent a C1-C15 alkyl group or an aryl group and X1 and X2 in total have 0 to 4 carboxyl groups; m1, m2, and m3 represents 0 or 1; L1 to L7 independently represent a methine group; M represents a hydrogen atom, a metal, or a quaternary ammonium salt; and n represents an integer of 1 to 7 necessary for neutralizing charge.
    Type: Application
    Filed: March 7, 2003
    Publication date: October 13, 2005
    Applicants: FUJI PHOTO FILM CO., LTD.
    Inventors: Masayuki Kawakami, Hiroshi Kitaguchi, Kai Licha, Christin Perlitz, Hiroaki Eguchi, Natsuko Tsuda, Kazuhiro Aikawa
  • Patent number: 6926885
    Abstract: This invention relates to an in-vivo diagnostic method based on near infrared radiation (NIR radiation) that uses water-soluble dyes and their biomolecule adducts, each having specific photophysical and pharmaco-chemical properties, as a contrast medium for fluorescence and transillumination diagnostics in the NIR range, to new dyes and pharmaceuticals containing such dyes.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: August 9, 2005
    Assignees: Institut fur Diagnostikforschung GmbH, Freien Universitat Berlin
    Inventors: Kai Licha, Björn Riefke, Wolfhard Semmler, Ulrich Speck, Christoph-Stephan Hilger
  • Publication number: 20050169844
    Abstract: This invention relates to an in-vivo diagnostic method based on near infrared radiation (NIR radiation) that uses water-soluble dyes and their biomolecule adducts, each having specific photophysical and pharmaco-chemical properties, as a contrast medium for fluorescence and transillumination diagnostics in the NIR range, to new dyes and pharmaceuticals containing such dyes.
    Type: Application
    Filed: March 29, 2005
    Publication date: August 4, 2005
    Applicant: Institut fur Diagnostikforschung GmbH an der Freien Universitat Berlin
    Inventors: Kai Licha, Bjorn Riefke, Wolfhard Semmler, Ulrich Speck, Christoph-Stephan Hilger
  • Patent number: 6913743
    Abstract: This invention relates to an in-vivo diagnostic method based on near infrared radiation (NIR radiation) that uses water-soluble dyes and their biomolecule adducts, each having specific photophysical and pharmaco-chemical properties, as a contrast medium for fluorescence and transillumination diagnostics in the NIR range, to new dyes and pharmaceuticals containing such dyes.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: July 5, 2005
    Assignee: Institut fur Diagnostikforschung GmbH an der Freien Universitat Berlin
    Inventors: Kai Licha, Björn Riefke, Wolfhard Semmler, Ulrich Speck, Christoph-Stephan Hilger
  • Publication number: 20050106106
    Abstract: This invention relates to an in-vivo diagnostic method based on near infrared radiation (NIR radiation) that uses water-soluble dyes and their biomolecule adducts, each having specific photophysical and pharmaco-chemical properties, as a contrast medium for fluorescence and transillumination diagnostics in the NIR range, to new dyes and pharmaceuticals containing such dyes.
    Type: Application
    Filed: December 16, 2004
    Publication date: May 19, 2005
    Applicant: Institut fur Diagnostikforschung GmbH an der Freien Universitat Berlin
    Inventors: Kai Licha, Bjorn Riefke, Wolfhard Semmler, Ulrich Speck, Christoph-Stephan Hilger
  • Publication number: 20050064512
    Abstract: This invention relates to emitter-binding peptides that produce a change in the spectral emission properties of the emitter in the case of an interaction of its antigen-binding pocket with the emitter. The emitter-binding peptides of the invention are in particular components of antibodies and antibody fragments.
    Type: Application
    Filed: July 9, 2004
    Publication date: March 24, 2005
    Inventors: Michael Schirner, Kai Licha, Andreas Menrad
  • Publication number: 20050037402
    Abstract: This invention relates to a device and a process for direct quantitative in vitro determination of a substance that is contained in a sample. The device according to the invention comprises agents, immobilized on a surface, for detecting substances, a free substance-emitter conjugate, and agents, immobilized on a surface, for detecting the emitter. The emitter of the device that is used comprises a portion that reacts with a change in the emission properties in an interaction with the agent for detecting the emitter. By means of the device according to the invention, substances that are selected from antigens, such as proteins, peptides, nucleic acids, oligonucleotides, blood components, serum components, lipids, pharmaceutical agents and compounds of low molecular weight or, in another design, substance-detecting agents, such as, for example, antibodies or fragments thereof, can be determined directly quantitatively, in, e.g., whole-blood samples.
    Type: Application
    Filed: July 9, 2004
    Publication date: February 17, 2005
    Inventors: Michael Schirner, Kai Licha
  • Publication number: 20040260072
    Abstract: This invention relates to new fluorescence dyes from the class of cyanine dyes, especially indotricarbocyanines with an absorption and fluorescence maximum in the spectral range of 700 to 900 nm, a thiol-specific reactive group, and three, preferably four, sulfonate groups, to an increase of water solubility as well as the production of dyes. This invention also relates to the conjugates of these dyes with biomolecules and uses thereof.
    Type: Application
    Filed: January 23, 2004
    Publication date: December 23, 2004
    Inventors: Kai Licha, Christin Perlitz
  • Patent number: 6630570
    Abstract: The invention relates to compounds for tumor diagnosis that consist of conjugates of dyes with short-chain peptides, which are derived from vaso-active intestinal peptide, somatostatin or neurotensin, the use of these compounds as optical dignostic agents, and diagnostic agents that contain these compounds.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: October 7, 2003
    Assignee: Insitut für Diagnostikforschung GmbH
    Inventors: Kai Licha, Andreas Becker, Wolfhard Semmler, Bertram Wiedenmann, Carsten Hessenius, Rudolf Volkmer-Engert, Jens Schneider-Mergner
  • Publication number: 20030170179
    Abstract: This invention relates to an in-vivo diagnostic method based on near infrared radiation (NIR radiation) that uses water-soluble dyes and their biomolecule adducts, each having specific photophysical and pharmaco-chemical properties, as a contrast medium for fluorescence and transillumination diagnostics in the NIR range, to new dyes and pharmaceuticals containing such dyes.
    Type: Application
    Filed: February 19, 2003
    Publication date: September 11, 2003
    Applicant: Institut fur Diagnostikforschung GMBH an der freien Universita (copy)
    Inventors: Kai Licha, Bjorn Riefke, Wolfhard Semmler, Ulrich Speck, Christoph-Stephan Hilger
  • Publication number: 20030095924
    Abstract: Abstract This invention describes galenical formulations that contain perfluoroalkyl-containing dye molecules and other perfluoroalkyl-containing substances. The new formulations are suitable as, i.a., contrast media for near-infrared diagnosis.
    Type: Application
    Filed: July 12, 2002
    Publication date: May 22, 2003
    Applicant: Schering Aktiengesellschaft
    Inventors: Kai Licha, Andreas Becker, Bjoern Riefke, Johannes Platzek
  • Patent number: 6534041
    Abstract: The invention relates to acid-labile and enzymatically divisible compounds for in-vivo and in-vitro diagnosis by means of near infrared radiation (NIR-radiation), the use of said compounds as optic diagnostic and therapeutic agents, and the diagnostic agents containing said compounds.
    Type: Grant
    Filed: May 1, 2000
    Date of Patent: March 18, 2003
    Assignee: Institute for Diagnostic Research GmbH of the Free University of Berlin
    Inventors: Kai Licha, Bjorn Riefke, Wolfhard Semmler, Wolfgang Wrasidlo
  • Publication number: 20030026763
    Abstract: This invention relates to an in-vivo diagnostic method based on near infrared radiation (NIR radiation) that uses water-soluble dyes and their biomolecule adducts, each having specific photophysical and pharmaco-chemical properties, as a contrast medium for fluorescence and transillumination diagnostics in the NIR range, to new dyes and pharmaceuticals containing such dyes.
    Type: Application
    Filed: June 26, 2002
    Publication date: February 6, 2003
    Applicant: Institut Fur Diagnostikforschung GmbH an der Freien Universitat Berlin
    Inventors: Kai Licha, Bjorn Riefke, Wolfhard Semmler, Ulrich Speck, Christopher -Stephen Hilger
  • Patent number: 6447749
    Abstract: This invention describes galenical formulations that contain perfluoroalkyl-containing dye molecules and other perfluoroalkyl-containing substances. The new formulations are suitable as, i.a., contrast media for near-infrared diagnosis.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: September 10, 2002
    Assignees: Schering Aktiengesellschaft, Institut fuer Diagnostikforschung
    Inventors: Kai Licha, Andreas Becker, Bjoern Riefke, Johannes Platzek
  • Publication number: 20020022004
    Abstract: This invention relates to colloidal systems charged with polymethine dyes and having suitable photophysical and pharmacological properties, their use as a contrast medium in fluorescence and transillumination diagnostics in the near infrared spectral range, as well as methods for their production.
    Type: Application
    Filed: September 25, 2001
    Publication date: February 21, 2002
    Inventors: Kai Licha, Bjorn Riefke, Werner Weitschiess, Dieter Heldmann, Violetta Sudmann
  • Publication number: 20010055567
    Abstract: This invention relates to an in-vivo diagnostic method based on near infrared radiation (NIR radiation) that uses water-soluble dyes and their biomolecule adducts, each having specific photophysical and pharmaco-chemical properties, as a contrast medium for fluorescence and transillumination diagnostics in the NIR range, to new dyes and pharmaceuticals containing such dyes.
    Type: Application
    Filed: May 7, 2001
    Publication date: December 27, 2001
    Applicant: Institut Fur Diagnostikforschung GmbH An Der Freien Universitat Berlin
    Inventors: Kai Licha, Bjorn Riefke, Wolfhard Semmler, Ulrich Speck, Christoph-Stephan Hilger
  • Patent number: 6329531
    Abstract: The invention relates to compounds of formula (I): Fm(—A1)(—Bn)(—Wo) wherein F is a colorant-signal molecule with a maximum absorption value ranging from 600-1200 nm; A is a &bgr;-amyloid plaque binding biomolecule; B is a &bgr;-amyloid plaque binding colorant; and W is a &bgr;-amyloid plaque binding hydrophilic low-molecular structural element. The invention also describes the use of these compounds in in vivo an din vitro diagnosis of neurodegenerative diseases such as Alzheimer's disease by means of near infra-red radiation (NIR radiation) as a constrasting agent in fluoresecence and transillumination diagnosis in the NIR range. Diagnostic agents containing said componenets are also disclosed.
    Type: Grant
    Filed: November 18, 1999
    Date of Patent: December 11, 2001
    Assignee: Schering AG
    Inventors: Jonathan Turner, Thomas Dyrks, Wolfhard Semmler, Kai Licha, Bjorn Riefke
  • Patent number: 6319488
    Abstract: This invention relates to colloidal systems charged with polymethine dyes and having suitable photophysical and pharmacological properties, their use as a contrast medium in fluorescence and transillumination diagnostics in the near infrared spectral range, as well as methods for their production.
    Type: Grant
    Filed: April 9, 1998
    Date of Patent: November 20, 2001
    Assignee: Institut für Diagnostikforschung GmbH an der Freien Universität Berlin
    Inventors: Kai Licha, Björn Riefke, Werner Weitschiess, Dieter Heldmann, Violetta Sudmann