Patents Assigned to Alfred E. Tiefenbacher GmbH & Co. KG
  • PROCESS FOR THE PREPARATION OF POLYQUARTERNIUM-l
    Publication number: 20150197603
    Abstract: The present invention relates to a method for the preparation of polyquaternium-1, wherein an aprotic polar solvent is used as the reaction medium, and a solid polyquaternium-1 having a low degree of polydispersity.
    Type: Application
    Filed: June 19, 2013
    Publication date: July 16, 2015
    Applicant: ALFRED E. TIEFENBACHER (GMBH & CO. KG)
    Inventors: Stefan Becker, Uwe Eilitz, Gunnar Göthe, Jens Flemming
  • Process for the synthesis of etoricoxib
    Patent number: 9024030
    Abstract: The present invention relates to a process for the synthesis of the anti-inflammatory agent 5-chloro-3-(4-methanesulfonylphenyl)-6?-methyl-[2,3?]bipyridine, referred to as compound of formula (1) or etoricoxib, which is a pharmaceutically active ingredient inhibiting cyclooxygenase-2. In particular, the application concerns a novel process of making the compound of formula (1) by oxidizing a compound of formula (4).
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: May 5, 2015
    Assignees: Alfred E. Tiefenbacher (GmbH & Co. KG), Shanghai Golden Pharmatech Co. Ltd.
    Inventors: Zhenmin Mao, Tian Lan, Lanfang Liu, Long Yan, Stefan Becker
  • TRANSDERMAL THERAPEUTIC SYSTEM WITH CHOLINESTERASE INHIBITOR
    Publication number: 20130177606
    Abstract: The invention concerns a transdermal therapeutic system with a carbamate cholinesterase inhibitor for the treatment of mild to moderate Alzheimer's disease dementia and/or Parkinson's disease dementia.
    Type: Application
    Filed: January 10, 2013
    Publication date: July 11, 2013
    Applicants: AMW GMBH, ALFRED E. TIEFENBACHER (GMBH & CO. KG)
    Inventors: ALFRED E. TIEFENBACHER (GmbH & Co. KG), AMW GmbH
  • Candesartan cilexetil
    Patent number: 8193226
    Abstract: Candesartan cilexetil-containing granules which include a sugar alcohol and a binder and which are produced by granulation with an alcoholic granulating liquid. The granules are suitable for producing tablets in which the candesartan cilexetil is present in a form stabilized with regard to decomposition.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: June 5, 2012
    Assignees: Zhejiang Huahai Pharmaceutical Co., Ltd., Alfred E. Tiefenbacher GmbH & Co. KG
    Inventors: Qiaomei Wu, Huiyan Gao, Hao Chen, Qiping Yan, Junqing Peng, Gongyun Hu
  • CANDESARTAN CILEXETIL
    Publication number: 20100267785
    Abstract: Candesartan cilexetil-containing granules which include a sugar alcohol and a binder and which are produced by granulation with an alcoholic granulating liquid. The granules are suitable for producing tablets in which the candesartan cilexetil is present in a form stabilized with regard to decomposition.
    Type: Application
    Filed: October 27, 2008
    Publication date: October 21, 2010
    Applicants: HUAHAI ZHEJIANG HUAHAI PHARMACEUTICAL CO., LTD., ALFRED E. TIEFENBACHER GMBH & CO. KG
    Inventors: Qiaomei Wu, Huiyan Gao, Hao Chen, Qiping Yan, Junqing Peng, Gongyun Hu