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).

  • Patent number: 11045560
    Abstract: The present invention relates to novel dendrimer conjugates, methods for their preparation and their use for treatment of diseases. The invention discloses a new method for the delivery of dendrimer conjugates with therapeutically active molecules into the cell by utilizing transmembrane solute carrier proteins enabling uptake of the inventive dendrimer conjugates. Particular subject-matter of the present invention is a conjugate of the formula E-[G-L-D(OSO3?M+)n]m, wherein E is a therapeutic or diagnostic effector molecule, wherein D(OSO3?M+)n is a dendrimer D carrying a number n of sulfate groups OSO3?M+, wherein the number n of sulfate groups is selected from 6 to 96, wherein M is a cationic inorganic or organic counter ion to the anionic sulfate group, wherein L is a linker or spacer between D and E, wherein G is a connecting functional group forming the attachment between L and E, and wherein m is an integer from 1 to 20.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: June 29, 2021
    Inventors: Kai Licha, Michael Schirner
  • Publication number: 20170182193
    Abstract: The present invention relates to novel dendrimer conjugates, methods for their preparation and their use for treatment of diseases. The invention discloses a new method for the delivery of dendrimer conjugates with therapeutically active molecules into the cell by utilizing transmembrane solute carrier proteins enabling uptake of the inventive dendrimer conjugates. Particular subject-matter of the present invention is a conjugate of the formula E-?G-L-D(OSO3?M+)n?m, wherein E is a therapeutic or diagnostic effector molecule, wherein D(OSO3?M+)n is a dendrimer D carrying a number n of sulfate groups OSO3?M+, wherein the number n of sulfate groups is selected from 6 to 96, wherein M is a cationic inorganic or organic counter ion to the anionic sulfate group, wherein L is a linker or spacer between D and E, wherein G is a connecting functional group forming the attachment between L and E, and wherein m is an integer from 1 to 20.
    Type: Application
    Filed: May 21, 2015
    Publication date: June 29, 2017
    Inventors: Kai LICHA, Michael SCHIRNER
  • Patent number: 8877171
    Abstract: The present invention relates generally to methods and compositions for targeting of intracellular molecules involved in proliferation and protein synthesis of activated cells using polyanionic multivalent macromolecules. In particular aspect, multiple sulfate groups linked to polyol are specifically targeted to the cytoplasm and nucleus of proliferating and activated cells. The invention further comprises novel polyanionic macromolecular compounds and formulations.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: November 4, 2014
    Assignee: Mivenion GmbH
    Inventors: Kai Licha, Michael Schirner, Pia Welker, Rainer Haag, Marie Weinhart, Florian Paulus
  • Publication number: 20130095035
    Abstract: The present invention relates generally to methods and compositions for targeting of intracellular molecules involved in proliferation and protein synthesis of activated cells using polyanionic multivalent macromolecules. In particular aspect, multiple sulfate groups linked to polyol are specifically targeted to the cytoplasm and nucleus of proliferating and activated cells. The invention further comprises novel polyanionic macromolecular compounds and formulations.
    Type: Application
    Filed: January 31, 2011
    Publication date: April 18, 2013
    Applicant: MIVENION GMBH
    Inventors: Kai Licha, Michael Schirner, Pia Welker, Rainer Haag, Marie Weinhart, Florian Paulus
  • Publication number: 20110098578
    Abstract: The present invention concerns the use of indocarbocyanine dyes, in particular indotricarbocyanine dyes for the diagnosis of inflammatory diseases, in particular rheumatoid arthritis, methods of diagnosing inflammatory diseases and an apparatus useful to carry out the method of diagnosing.
    Type: Application
    Filed: January 5, 2011
    Publication date: April 28, 2011
    Inventors: Kai LICHA, Michael SCHIRNER, Axel VATER, Sonja VOLLMER
  • Publication number: 20110065896
    Abstract: Subject of the present invention are polyether polyol dendron conjugates comprising a specific polyether polyol dendron moiety, at least one certain fluorescent effector molecule (E). Such polyether polyol dendron conjugates may be used for diagnostic and therapeutic purposes, whereby the optical properties of the at least one certain fluorescent effector molecule are enhanced due to the attachment to the polyether polyol dendron conjugate.
    Type: Application
    Filed: March 10, 2009
    Publication date: March 17, 2011
    Applicant: MIVENION GMBH
    Inventors: Kai Licha, Malte Bahner, Michael Schirner, Rainer Haag, Timm Heek, Monika Wyszogrodzka
  • Patent number: 7879314
    Abstract: The present invention concerns the use of indocarbocyanine dyes, in particular indotricarbocyanine dyes for the diagnosis of inflammatory diseases, in particular rheumatoid arthritis, methods of diagnosing inflammatory diseases and an apparatus useful to carry out the method of diagnosing.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: February 1, 2011
    Assignee: Bayer Schering Pharma AG
    Inventors: Kai Licha, Michael Schirner, Axel Vater, Sonja Vollmer
  • Publication number: 20100166659
    Abstract: The present invention concerns the use of the cyanine dye SF64 for the diagnosis of proliferative diseases upon administration of less than 5 mg/kg body weight.
    Type: Application
    Filed: January 14, 2010
    Publication date: July 1, 2010
    Inventors: Kai Licha, Michael Schirner, Martin Pessel, Malte Bahner
  • Publication number: 20100129293
    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: January 26, 2010
    Publication date: May 27, 2010
    Applicant: Institut fur Diagnostikforschung GmbH an der Freien Universitat Berlin
    Inventors: Kai Licha, Bjórn Riefke, Wolfhard Semmler, Ulrich Speck, Christoph-Stephan Hilger
  • Patent number: 7655217
    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: March 22, 2006
    Date of Patent: February 2, 2010
    Assignee: Institut fur Diagnosikforschung GmbH
    Inventors: Kai Licha, Björn Riefke, Wolfhard Semmler, Ulrich Speck, Christoph-Stephan Hilger
  • Publication number: 20090041670
    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: June 27, 2008
    Publication date: February 12, 2009
    Inventors: Masayuki Kawakami, Hiroshi Kitaguchi, Kai Licha, Christin Perlitz, Hiroaki Eguchi, Natsuko Tsuda, Kazuhiro Aikawa
  • Patent number: 7473415
    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: Grant
    Filed: March 7, 2003
    Date of Patent: January 6, 2009
    Assignees: Fuji Photo Film Co., Ltd., Schering Aktiengesellschaft
    Inventors: Masayuki Kawakami, Hiroshi Kitaguchi, Kai Licha, Christin Perlitz, Hiroaki Eguchi, Natsuko Tsuda, Kazuhiro Aikawa
  • Patent number: 7445767
    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: March 22, 2006
    Date of Patent: November 4, 2008
    Assignee: Institut fur Diagnostikforschung GmbH an der Freien Universitat Berlin
    Inventors: Kai Licha, Björn Riefke, Wolfhard Semmler, Ulrich Speck, Christoph-Stephan Hilger
  • Publication number: 20070104649
    Abstract: The present invention refers to nanoparticles having optically fluorescent activity. In more detail, the invention refers to a nanoparticle matrix comprising a co-aggregate of at least one charged polyelectrolyte and at least one oppositely charged active agent, wherein the active agent is a hydrophilic optically fluorescent agent, and the invention further refers to a nanoparticle comprising said nanoparticle matrix. Optionally, the nanoparticle is surface modified. The invention also refers to a method for preparing said nanoparticle, and to a method of surface modification. Furthermore, the invention refers to uses of said nanoparticle in vitro and in vivo, and to methods for in vitro and in vivo diagnosis.
    Type: Application
    Filed: September 1, 2006
    Publication date: May 10, 2007
    Inventors: Katrin Fischer, Sascha General, Kai Licha
  • Publication number: 20070059244
    Abstract: The present invention concerns the use of indocarbocyanine dyes, in particular indotricarbocyanine dyes for the diagnosis of inflammatory diseases, in particular rheumatoid arthritis, methods of diagnosing inflammatory diseases and an apparatus useful to carry out the method of diagnosing.
    Type: Application
    Filed: June 28, 2006
    Publication date: March 15, 2007
    Inventors: Kai Licha, Michael Schirner, Axel Vater, Sonja Vollmer
  • Patent number: 7175953
    Abstract: The description herein includes cyanine dyes and analogs of the vaso-active intestinal peptide. These are useful to provide peptide-dye conjugates for use as contrast media in optical diagnoses.
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: February 13, 2007
    Assignee: Institute Fuer Diagnostik Forschung
    Inventors: Kai Licha, Andreas Becker, Wolfhard Semmler, Bertram Wiedenmann, Carsten Hessenius, Rudolf Volkmer-Engert, Jens Schneider-Mergner
  • Publication number: 20060239916
    Abstract: The present invention concerns the use of the cyanine dye SF64 for the diagnosis of proliferative diseases upon administration of less than 5 mg/kg body weight.
    Type: Application
    Filed: January 6, 2006
    Publication date: October 26, 2006
    Inventors: Kai Licha, Michael Schirner, Martin Pessel, Malte Bahner
  • Publication number: 20060165598
    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 22, 2006
    Publication date: July 27, 2006
    Applicant: Institut fur Diagnostikforschung GmbH an der Freien Universitat Berlin
    Inventors: Kai Licha, Bjorn Riefke, Wolfhard Semmler, Ulrich Speck, Christoph-Stephan Hilger
  • Publication number: 20060165599
    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 22, 2006
    Publication date: July 27, 2006
    Applicant: Institut fur Diagnostikforschung GmbH
    Inventors: Kai Licha, Bjorn Riefke, Wolfhard Semmler, Ulrich Speck, Christoph-Stephan Hilger
  • Patent number: 7025949
    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: May 7, 2001
    Date of Patent: April 11, 2006
    Assignee: Institut fur Diagnostikforschung GmbH an der Freien Universitat Berlin
    Inventors: Kai Licha, Bjorn Riefke, Wolfhard Semmler, Ulrich Speck, Christoph-Stephan Hilger