Patents by Inventor Hans-Gunter Striegel

Hans-Gunter Striegel 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: 8519155
    Abstract: The present invention relates to the choline and tromethamine salt of Licofelone.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: August 27, 2013
    Assignee: c-a-i-r biosciences GmbH
    Inventors: Wolfgang Albrecht, Hans-Günter Striegel, Stefan Laufer
  • Publication number: 20120010261
    Abstract: The present invention relates to the choline and tromethamine salt of Licofelone.
    Type: Application
    Filed: October 30, 2009
    Publication date: January 12, 2012
    Applicant: c-a-i-r biosciences GmbH
    Inventors: Wolfgang Albrecht, Hans-Günter Striegel, Stefan Laufer
  • Patent number: 8034837
    Abstract: The present invention relates to a new crystalline modification of 6-(4-chlorophenyl)-2,2-dimethyl-7-phenyl-2,S-dihydro-1H-pyrrolizin-S-ylacetic acid which is referred to as polymorph B. It has a peak in the solid state 13C-NMR spectrum (with adamantane as external reference standard; CH group d=29.45 ppm) in the range from 179.8 to 180.2 ppm and can be processed directly to a pharmaceutical formulation.
    Type: Grant
    Filed: March 20, 2006
    Date of Patent: October 11, 2011
    Assignee: Merckle GmbH
    Inventors: Wolfgang Albrecht, Thomas Kammermeier, Hans-Gunter Striegel, Philipp Merckle, Stefan Laufer
  • Publication number: 20110034703
    Abstract: The present invention relates to novel crystal forms of Sunitinib and methods for their preparation.
    Type: Application
    Filed: March 5, 2009
    Publication date: February 10, 2011
    Applicant: ratiopharm GmbH
    Inventors: Nesrin Mohamad, Roland Boese, Rüdiger Latz, Hans-Günter Striegel
  • Publication number: 20100273833
    Abstract: The invention relates to 2-sulfinyl- or 2-sulfonyl-substituted imidazole derivatives of the formula (I) in which the radicals R1, R2, R3 and R4 have the meaning indicated in the description. The compounds of the invention have an immunomodulating and/or cytokine release-inhibiting effect and are therefore suitable for the treatment of disorders associated with an impairment of the immune system.
    Type: Application
    Filed: February 27, 2006
    Publication date: October 28, 2010
    Inventors: Wolfgang Albrecht, Cornelia Greim, Hans-Gunter Striegel, Karola Tollmann, Philipp Merkle, Stefan Laufer
  • Publication number: 20100069436
    Abstract: The invention relates to imidazole derivatives of the Formula (I) in which the radicals R1, R2, R3, R4 and R5 have the meanings indicated in the description. The compounds of the invention have an immunomodulating and/or cytokine release-inhibiting effect and are therefore suitable for the treatment of disorders associated with an impairment of the immune system.
    Type: Application
    Filed: August 24, 2007
    Publication date: March 18, 2010
    Applicant: Merckle
    Inventors: Wolfgang Albrecht, Dominik Hauser, Stefan Laufer, Hans-Gunter Striegel, Karola Tollmann
  • Patent number: 7582660
    Abstract: The invention relates to 2-thio-substituted imidazole derivatives of the formula I in which the radicals R1, R2, R3 and m are as defined in the description. The compounds according to the invention have immunomodulating and/or cytokine-release-inhibiting action and are therefore suitable for treating disorders associated with a disturbed immune system.
    Type: Grant
    Filed: August 20, 2003
    Date of Patent: September 1, 2009
    Assignee: c-a-i-r biosciences GmbH
    Inventors: Stefan Laufer, Hans-Günter Striegel, Karola Tollmann, Wolfgang Albrecht
  • Publication number: 20090209610
    Abstract: The present invention relates to a new crystalline modification of 6-(4-chlorophenyl)-2,2-dmethyl-7-phenyl-2, S-dihydro-1H-pyrrolizin-S-ylacetic acid which is referred to as polymorph B. It has a peak in the solid state 13C-NMR spectrum (with adamantane as external reference standard; CH group d=29.45 ppm) in the range from 179.8 to 180.2 ppm and can be processed directly to a pharmaceutical formulation.
    Type: Application
    Filed: March 20, 2006
    Publication date: August 20, 2009
    Applicant: Merckle GmgH
    Inventors: Wolfgang Albrecht, Thomas Kammermeier, Hans-Gunter Striegel, Philipp Merckle, Stefan Laufer
  • Publication number: 20060235054
    Abstract: The invention relates to 2-thio-substituted imidazole derivatives of the formula I in which the radicals R1, R2 R3 and m are as defined in the description. The compounds according to the invention have immunomodulating and/or cytokine-release-inhibiting action and are therefore suitable for treating disorders associated with a disturbed immune system.
    Type: Application
    Filed: August 20, 2003
    Publication date: October 19, 2006
    Applicant: MERCKLE-GMBH
    Inventors: Stefan Laufer, Hans-Gunter Striegel, Karola Tollmann, Wolfgang Albrecht
  • Patent number: 7078535
    Abstract: The invention relates to a process for the preparation of 6-(4-chlorophenyl)-2,2-dimethyl-7-phenyl-2,3-dihydro-1H-pyrrolizin-5-ylacetic acid, in which 5-benzyl-3,3-dimethyl-3,4-dihydro-2H-pyrrole is reacted with ?-bromo-4-chloroacetophenone with formation of 6-(4-chlorophenyl)-2,2-dimethyl-7-phenyl-2,3-dihydro-1H-pyrrolizine and the acetic acid group is introduced into the 5-position, 5-benzyl-3,3-dimethyl-3,4-dihydro-2H-pyrrole being obtained by hydrogenation of 2,2-dimethyl-4-oxo-5-phenylvaleronitrile or a ketal thereof. The invention also relates to processes for the preparation of intermediates occurring in the above process.
    Type: Grant
    Filed: August 21, 2002
    Date of Patent: July 18, 2006
    Assignee: Merckle GmbH
    Inventors: Gerd Dannhardt, Thomas Kammermeier, Philipp Merckle, Hans-Günter Striegel, Stefan Laufer
  • Publication number: 20060128759
    Abstract: The invention relates to substituted isoxazole derivatives of formula (I), wherein the radicals R1, R2 and R3 have the meanings as cited in the description.
    Type: Application
    Filed: August 19, 2003
    Publication date: June 15, 2006
    Applicant: MERCKLE GMBH
    Inventors: Stefan Laufer, Hans-Gunter Striegel, Wolfgang Albrecht, Karola Tollmann
  • Publication number: 20040236117
    Abstract: The invention relates to a process for the preparation of 6-(4-chlorophenyl)-2,2-dimethyl-7-phenyl-2,3-dihydro-1H-pyrrolizin-5-ylacetic acid, in which 5-benzyl-3,3-dimethyl-3,4-dihydro-2H-pyrrole is reacted with &ohgr;-bromo-4-chloroacetophenone with formation of 6-(4-chlorophenyl)-2,2-dimethyl-7-phenyl-2,3-dihydro-1H-pyrrolizine and the acetic acid group is introduced into the 5-position, 5-benzyl-3,3-dimethyl-3,4-dihydro-2H-pyrrole being obtained by hydrogenation of 2,2-dimethyl-4-oxo-5-phenylvaleronitrile or a ketal thereof. The invention also relates to processes for the preparation of intermediates occurring in the above process.
    Type: Application
    Filed: June 4, 2004
    Publication date: November 25, 2004
    Inventors: Gerd Dannhardt, Thomas Kammermeier, Philipp Merckle, Hans-Gunter Striegel, Stefan Laufer
  • Publication number: 20040116416
    Abstract: The invention relates to 2-thio-substituted imidazole derivatives of the formula I 1
    Type: Application
    Filed: January 28, 2004
    Publication date: June 17, 2004
    Inventors: Stefan Laufer, Dunja Kotschenreuther, Philipp Merckle, Karola Tollmann, Hans-Gunter Striegel
  • Patent number: 6432988
    Abstract: The invention relates to 4-heteroaryl-5-phenylimidazole derivatives having 2-arylalkylthio, 2-arylalkenylthio and 2-arylalkynylthio substitution, of the general formula I: in which Ar is a phenyl radical, Het is a hetero aromatic radical, A is an alkylene chain, R1 is an alkylthio, alkylsulfinyl, alkylsulfonyl, sulfonamido or alkylcarbonyl group and R2 is an alkyl, hydroxyl, alkoxy, alkoxycarbonyl, sulfonamido, carboxyl, nitro or aminocarbonyl group or a halogen atom. n can be 1 or 2 and m is 0 to 2. The compounds according to the invention show antiinflammatory activity.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: August 13, 2002
    Assignee: Merckle GmbH
    Inventors: Stefan Laufer, Hans-Günter Striegel, Karola Neher