Patents by Inventor Hans-Günter Striegel

Hans-Günter 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
  • 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
  • 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: 20090105327
    Abstract: The present invention relates to compounds of the formula I in which R1, R2, R3, R4, X and Y have the meanings indicated in the description. These compounds have immunomodulating effects, as well as an inhibiting or regulating effect on the release of IL-1? and/or TNF-?. They can therefore be used for the treatment of diseases associated with a disturbance of the immune system.
    Type: Application
    Filed: May 12, 2006
    Publication date: April 23, 2009
    Applicant: Merckle GMBH
    Inventors: Stefan Laufer, Wolfgang Albrecht, Cornelia Greim, Hans-Guenter Striegel, Karola Tollmann
  • Patent number: 7442713
    Abstract: The invention relates to 2-thio-substituted imidazole derivatives of the formula I in which the radicals R1, R2, R3, R4 and p 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: May 16, 2003
    Date of Patent: October 28, 2008
    Assignee: Merckle GmbH
    Inventors: Stefan Laufer, Hans-Guenter Striegel, Wolfgang Albrecht, Karola Tollmann
  • Patent number: 7253191
    Abstract: The invention relates to 2-thio-substituted imidazole derivatives of the formula I in which the radicals R1, R2, R3 and R4 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: February 19, 2002
    Date of Patent: August 7, 2007
    Assignee: Merckle GmbH
    Inventors: Stefan Laufer, Dunja Kotschenreuther, Philipp Merckle, Karola Tollmann, Hans-Guenter Striegel
  • Publication number: 20060252810
    Abstract: The invention relates to 2-thio-substituted imidazole derivatives of the formula I in which the radicals R1, R2, R3, R4 and p 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: May 16, 2003
    Publication date: November 9, 2006
    Inventors: Stefan Laufer, Hans-Guenter Striegel, Wolfgang Albrecht, Karola Tollmann
  • 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
  • Patent number: 6936632
    Abstract: The present invention relates to fused pyrrole compounds of the formula 1. in which at least one of the radicals R1, R2, R3 is 4-sulphur-substituted phenyl. These compounds are in particular pyrrolizines, indolizines and heteroanalogues having selective inhibitory action on isoenzyme-2 of prostaglandin H synthase (COX-2). The invention also relates to pharmaceutical compositions which contain these compounds; and the use of these compounds for the treatment of disorders of the rheumatic type.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: August 30, 2005
    Assignee: Merckle GmbH
    Inventors: Hans-Guenter Striegel, Stefan Laufer, Karola Tollmann, Susanne Tries
  • Patent number: 6878738
    Abstract: The present invention relates to compounds of the formula I in which one of the radicals R8 and R9 is a hydrogen atom or an alkyl group and the other is hydroxyl, alkoxy or acyloxy or where R8 and R9, together with the carbon atom to which they are bonded, are a carbonyl group and the radicals R1 to R7 have the meanings indicated in the description. The compounds inhibit the release of various mediators of the arachidonic acid cascade and can thus be used for the prevention of allergically induced disorders or for the treatment of disorders of the rheumatic type.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: April 12, 2005
    Assignee: Merckle GmbH
    Inventors: Stefan Laufer, Karola Tollmann, Hans-Guenter Striegel
  • Patent number: 6867211
    Abstract: The present invention relates to 4-pyridyl- and 2,4-pyrimidinyl-substituted pyrrole derivatives and their use in pharmacy, of the formula 1: in which the variables have the meanings indicated in the description. The compounds according to the invention have immunomodulating and/or cytokine release-inhibiting action and are therefore utilizable for the treatment of disorders which are connected with a disturbance of the immune system.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: March 15, 2005
    Assignee: Merckle GmbH
    Inventors: Hans-Guenter Striegel, Stefan Laufer, Karola Tollmann, Susanne Tries
  • Publication number: 20040122002
    Abstract: The present invention relates to fused pyrrole compounds of the formula 1.
    Type: Application
    Filed: September 27, 2002
    Publication date: June 24, 2004
    Inventors: Hans Guenter Striegel, Stefan Laufer, Karola Tollmann, Susanne Tries
  • Publication number: 20030153558
    Abstract: The present invention relates to 4-pyridyl- und 2,4-pyrimidinyl-substituted pyrrole derivatives and their use in pharmacy, of the formula 1 1
    Type: Application
    Filed: November 5, 2002
    Publication date: August 14, 2003
    Inventors: Hans-Guenter Striegel, Stefan Laufer, Karola Tollmann, Susanne Tries
  • 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
  • Patent number: 6417371
    Abstract: The present invention relates to a process process for the preparation of the compound of the formula I where the compound of the formula III is reacted with oxalyl chloride and the product obtained is treated with hydrazine and an alkali metal hydroxide in the aqueous phase at elevated temperature, after treatment is complete a three-phase system is produced by addition of an ether and the compound of the formula I is obtained by acidifying the middle phase. The invention moreover relates to a polymorph of the compound of the formula I.
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: July 9, 2002
    Assignee: Merckle GmbH
    Inventors: Thomas Kammermeier, Stefan Laufer, Philipp Merckle, Hans-Guenter Striegel
  • Publication number: 20020028953
    Abstract: The present invention relates to a process process for the preparation of the compound of the formula I 1
    Type: Application
    Filed: January 26, 2001
    Publication date: March 7, 2002
    Applicant: Merckle GmbH
    Inventors: Thomas Kammermeier, Stefan Laufer, Philipp Merckle, Hans-Guenter Striegel