Patents by Inventor Viktor Meier

Viktor Meier 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: 11897843
    Abstract: The present invention relates to a process for the preparation of enantiomerically enriched 3-aminopiperidine, as in particular of its R-enantiomer (R)-3-aminopiperidine. The invention also relates to an enantiomerically enriched intermediate of said process and to specific acid-addition salts of 3-aminopiperidine (hereinafter also APIP) that are useful for obtaining a single enantiomer of APIP, and to crystalline (R)-3-aminopiperidine-dihydrochloride-monohydrate and crystalline (S)-3-aminopiperidine-dihydrochloride-monohydrate.
    Type: Grant
    Filed: September 9, 2022
    Date of Patent: February 13, 2024
    Inventors: Karl Reuter, Tobias Wedel, Viktor Meier, Mark Kantor, Vasyl Andrushko, Florian Stolz
  • Publication number: 20230008387
    Abstract: The present invention relates to a process for the preparation of enantiomerically enriched 3-aminopiperidine, as in particular of its R-enantiomer (R)-3-aminopiperidine. The invention also relates to an enantiomerically enriched intermediate of said process and to specific acid-addition salts of 3-aminopiperidine (hereinafter also APIP) that are useful for obtaining a single enantiomer of APIP, and to crystalline (R)-3-aminopiperidine-dihydrochloride-monohydrateand crystalline (S)-3-aminopiperidine-dihydrochloride-monohydrate.
    Type: Application
    Filed: September 9, 2022
    Publication date: January 12, 2023
    Applicant: REUTER CHEMISCHE APPARATEBAU KG
    Inventors: Karl Reuter, Tobias Wedel, Viktor Meier, Mark Kantor, Vasyl Andrushko, Florian Stolz
  • Patent number: 11472770
    Abstract: The present invention relates to a process for the preparation of enantiomerically enriched 3-aminopiperidine, as in particular of its R-enantiomer (R)-3-aminopiperidine. The invention also relates to an enantiomerically enriched intermediate of said process and to specific acid-addition salts of 3-aminopiperidine (hereinafter also APIP) that are useful for obtaining a single enantiomer of APIP, and to crystalline (R)-3-aminopiperidine-dihydrochloride-monohydrateand crystalline (S)-3-aminopiperidine-dihydrochloride-monohydrate.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: October 18, 2022
    Inventors: Karl Reuter, Tobias Wedel, Viktor Meier, Mark Kantor, Vasyl Andrushko, Florian Stolz
  • Publication number: 20200087257
    Abstract: The present invention relates to a process for the preparation of enantiomerically enriched 3-aminopiperidine, as in particular of its R-enantiomer (R)-3-aminopiperidine. The invention also relates to an enantiomerically enriched intermediate of said process and to specific acid-addition salts of 3-aminopiperidine (hereinafter also APIP) that are useful for obtaining a single enantiomer of APIP, and to crystalline (R)-3-aminopiperidine-dihydrochloride-monohydrateand crystalline (S)-3-aminopiperidine-dihydrochloride-monohydrate.
    Type: Application
    Filed: September 23, 2019
    Publication date: March 19, 2020
    Applicant: REUTER CHEMISCHE APPARATEBAU KG
    Inventors: Karl Reuter, Tobias Wedel, Viktor Meier, Mark Kantor, Vasyl Andrushko, Florian Stolz
  • Patent number: 10464898
    Abstract: The present invention relates to a process for the preparation of enantiomerically enriched 3-aminopiperidine, and in particular of its R-enantiomer (R)-3-aminopiperidine. The invention also relates to an enantiomerically enriched intermediate of said process and to specific acid-addition salts of 3-aminopiperidine (hereinafter also APIP) that are useful for obtaining a single enantiomer of APIP, and to crystalline (R)-3-aminopiperidine-dihydrochloride-monohydrate and crystalline (S)-3-aminopiperidine-di-hydrochloride-monohydrate.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: November 5, 2019
    Assignee: Reuter Chemische Apparatebau KG
    Inventors: Karl Reuter, Tobias Wedel, Viktor Meier, Mark Kantor, Vasyl Andrushko, Florian Stolz
  • Publication number: 20160251311
    Abstract: The present invention relates to a process for the preparation of enantiomerically enriched 3-aminopiperidine, and in particular of its R-enantiomer (R)-3-aminopiperidine. The invention also relates to an enantiomerically enriched intermediate of said process and to specific acid-addition salts of 3-aminopiperidine (hereinafter also APIP) that are useful for obtaining a single enantiomer of APIP, and to crystalline (R)-3-aminopiperidine-dihydrochloride-monohydrate and crystalline (S)-3-aminopiperidine-di-hydrochloride-monohydrate.
    Type: Application
    Filed: February 19, 2014
    Publication date: September 1, 2016
    Applicant: REUTER CHEMISCHE APPARATEBAU KG
    Inventors: Karl Reuter, Tobias Wedel, Viktor Meier, Mark Kantor, Vasyl Andrushko, Florian Stolz
  • Patent number: 8519162
    Abstract: Described is pentamycin in a purity exceeding 95%, certain polymorphs and solvates of pentamycin, processes for their manufacture, and a method for decreasing the rate of degradation of pentamycin.
    Type: Grant
    Filed: March 20, 2009
    Date of Patent: August 27, 2013
    Assignee: Biolotus Biotechnology AG
    Inventors: Karl Reuter, Viktor Meier, Florian Stolz, Dieter Krimmer, Cees Winninps
  • Patent number: 8450519
    Abstract: The invention relates to a process for preparing chiral octenoic acid derivatives, which constitute important intermediates in the preparation of medicament active ingredients, and also to novel intermediates which are used in the process for preparing the octenoic acid derivatives mentioned.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: May 28, 2013
    Assignee: Reuter Chemischer Apparatebau KG
    Inventors: Milan Soukup, Karl Reuter, Florian Stolz, Viktor Meier, Jofzsef Balint, Mark Kantor
  • Patent number: 8445708
    Abstract: The invention relates to a process for preparing chiral octenoic acid derivatives, which constitute important intermediates in the preparation of medicament active ingredients, and also to novel intermediates which are used in the process for preparing the octenoic acid derivatives mentioned.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: May 21, 2013
    Assignee: Reuter Chemischer Apparatebau KG
    Inventors: Milan Soukup, Karl Reuter, Florian Stolz, Viktor Meier, Jofzsef Balint, Mark Kantor
  • Publication number: 20120178959
    Abstract: The invention relates to a process for preparing chiral octenoic acid derivatives, which constitute important intermediates in the preparation of medicament active ingredients, and also to novel intermediates which are used in the process for preparing the octenoic acid derivatives mentioned.
    Type: Application
    Filed: March 16, 2012
    Publication date: July 12, 2012
    Inventors: Milan SOUKUP, Karl Reuter, Florian Stolz, Viktor Meier, Jofzsef Balint, Mark Kantor
  • Patent number: 8071653
    Abstract: A method of promoting weight loss in animals or humans by administering thereto a therapeutically effective amount of a mixture of RR-ractopamine and SR-ractopamine is disclosed.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: December 6, 2011
    Assignee: Bridge Pharma, Inc.
    Inventors: A. K. Gunnar Aberg, Karl Reuter, Viktor Meier, Florian Stolz, Eliso Gogritchiani
  • Publication number: 20110077398
    Abstract: Described is pentamycin in a purity exceeding 95%, certain polymorphs and solvates of pentamycin, processes for their manufacture, and a method for decreasing the rate of degradation of pentamycin.
    Type: Application
    Filed: March 20, 2009
    Publication date: March 31, 2011
    Inventors: Karl Reuter, Viktor Meier, Florian Stolz, Dieter Krimmer, Cees Winninps
  • Publication number: 20100184865
    Abstract: A method of promoting weight loss in animals or humans by administering thereto a therapeutically effective amount of a mixture of RR-ractopamine and SR-ractopamine is disclosed.
    Type: Application
    Filed: March 31, 2010
    Publication date: July 22, 2010
    Applicant: BRIDGE PHARMA, INC.
    Inventors: A.K. Gunnar Aberg, Karl Reuter, Viktor Meier, Florian Stolz, Eliso Gogritchiani
  • Patent number: 7723392
    Abstract: A method of promoting or improving the feed efficiency and the muscle-to-fat ratio in animals by administering to the animals a therapeutically effective amount of a mixture of RR-ractopamine and SR-ractopamine is disclosed. Manufacturing methods for making RR/SR-ractopamine are presented.
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: May 25, 2010
    Assignee: Bridge Pharma, Inc.
    Inventors: A. K. Gunnar Aberg, Karl Reuter, Viktor Meier, Florian Stolz, Eliso Gogritchiani
  • Publication number: 20090221848
    Abstract: The invention relates to a process for preparing chiral octenoic acid derivatives, which constitute important intermediates in the preparation of medicament active ingredients, and also to novel intermediates which are used in the process for preparing the octenoic acid derivatives mentioned.
    Type: Application
    Filed: October 27, 2006
    Publication date: September 3, 2009
    Applicant: REUTER CHEMISCHER APPARATEBAU KG
    Inventors: Milan Soukup, Karl Reuter, Florian Stolz, Viktor Meier, Jofzsef Balint, Mark Kantor
  • Publication number: 20090143480
    Abstract: A method of promoting or improving the feed efficiency and the muscle-to-fat ratio in animals by administering to the animals a therapeutically effective amount of a mixture of RR-ractopamine and SR-ractopamine is disclosed. Manufacturing methods for making RR/SR-ractopamine are presented.
    Type: Application
    Filed: August 6, 2008
    Publication date: June 4, 2009
    Inventors: A.K. Gunnar Aberg, Karl Reuter, Viktor Meier, Florian Stolz, Eliso Gogritchiani
  • Patent number: 6589452
    Abstract: The present invention is related to photonic crystal devices that comprise novel mesoscopic periodic materials which comprise polymerized crystalline colloidal arrays (CCA) and at least one photosensitive component. Preferably, the photosensitive component is a photochromic molecule and more preferably the component is an azobenzene derivative. Methods for making these devices are also disclosed. The devices of the present invention are useful in many applications including, for example, optical switches, display devices and memory storage devices. The devices of the present invention permit the possibility to write with ultraviolet light and erase with visible light. In addition, the present invention is related to a functionalized polymerized crystalline colloidal array which preferably comprises reactive epoxide groups. The present invention is further directed to a photosensitive polymerized crystalline colloidal array.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: July 8, 2003
    Assignee: University of Pittsburgh
    Inventors: Sanford A. Asher, Marta Kamenjicki, Igor K. Lednev, Viktor Meier
  • Publication number: 20020008229
    Abstract: The present invention is related to photonic crystal devices that comprise novel mesoscopic periodic materials which comprise polymerized crystalline colloidal arrays (CCA) and at least one photosensitive component. Preferably, the photosensitive component is a photochromic molecule and more preferably the component is an azobenzene derivative. Methods for making these devices are also disclosed. The devices of the present invention are useful in many applications including, for example, optical switches, display devices and memory storage devices. The devices of the present invention permit the possibility to write with ultraviolet light and erase with visible light. In addition, the present invention is related to a functionalized polymerized crystalline colloidal array which preferably comprises reactive epoxide groups. The present invention is further directed to a photosensitive polymerized crystalline colloidal array.
    Type: Application
    Filed: February 23, 2001
    Publication date: January 24, 2002
    Inventors: Sanford A. Asher, Marta Kamenjicki, Igor K. Lednev, Viktor Meier