Patents by Inventor Fritz Bliss

Fritz Bliss 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).

  • Publication number: 20190284202
    Abstract: The invention relates to a process for the manufacture of diazepine derivatives as defined in the description and in the claims.
    Type: Application
    Filed: June 7, 2019
    Publication date: September 19, 2019
    Applicant: Hoffmann-La Roche Inc.
    Inventors: Fritz Bliss, Xiaohua Du, Dawei He, Stefan Hildbrand, Paul Spurr, Wenfa Ye, Jianbing Zheng
  • Patent number: 9676793
    Abstract: Co-crystals of Formula I compounds and their pharmaceutical compositions are novel therapeutics for the treatment of diseases, such as human immunodeficiency virus (HIV) infection, hepatitis B virus (HBV) infection, hepatitis C virus (HCV) infection and cancer. The co-crystal are more stable to oxidation and aqueous degradation, have a better pharmacokinetic profile and superior biological activity than the corresponding tosylate salt form of Formula I compound.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: June 13, 2017
    Assignee: Hoffmann-LaRoche Inc.
    Inventors: Urs Schwitter, Fritz Bliss, Michael Kammerer, Florence Tixeront
  • Publication number: 20160176899
    Abstract: Co-crystals of Formula I compounds and their pharmaceutical compositions are novel therapeutics for the treatment of diseases, such as human immunodeficiency virus (HIV) infection, hepatitis B virus (HBV) infection, hepatitis C virus (HCV) infection and cancer. The co-crystal are more stable to oxidation and aqueous degradation, have a better pharmacokinetic profile and superior biological activity than the corresponding tosylate salt form of Formula I compound.
    Type: Application
    Filed: December 21, 2015
    Publication date: June 23, 2016
    Inventors: Urs Schwitter, Fritz Bliss, Michael Kammerer, Florence Tixeront
  • Patent number: 9346763
    Abstract: The present invention relates to a novel process for the preparation of a pyrazole carboxylic acid derivative of the formula wherein R1 is C1-7-alkyl and R3 is C1-7-alkyl which is optionally substituted with halogen or C1-4-alkoxy. The pyrazole carboxylic acid derivative of the formula I can be used as building block in the preparation of pharmaceutically active principles e.g. for compounds acting as phosphodiesterase (PDE) inhibitors, particularly PDE10 inhibitors. PDE10 inhibitors have the potential to treat psychotic disorders like schizophrenia.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: May 24, 2016
    Assignee: Hoffman-La Roche Inc.
    Inventors: Bjoern Bartels, Fritz Bliss, Katrin Groebke Zbinden, Matthias Koerner
  • Publication number: 20150158818
    Abstract: The present invention relates to a novel process for the preparation of a pyrazole carboxylic acid derivative of the formula wherein R1 is C1-7-alkyl and R3 is C1-7-alkyl which is optionally substituted with halogen or C1-4-alkoxy. The pyrazole carboxylic acid derivative of the formula I can be used as building block in the preparation of pharmaceutically active principles e.g. for compounds acting as phosphodiesterase (PDE) inhibitors, particularly PDE10 inhibitors. PDE10 inhibitors have the potential to treat psychotic disorders like schizophrenia.
    Type: Application
    Filed: February 16, 2015
    Publication date: June 11, 2015
    Applicant: Hoffmann-La Roche Inc.
    Inventors: Bjoern Bartels, Fritz Bliss, Katrin Groebke Zbinden, Matthias Koerner
  • Patent number: 8796471
    Abstract: The present invention relates in part to a process for the preparation of a proline derivative of formula I wherein, R1 is C1-7-alkyl or wherein R4 is selected from the group consisting of C1-7-alkyl, halogen-C1-7-alkyl and phenyl optionally substituted by halogen; R2 is halogen or halogen-C1-7-alkyl; and R3 is selected from the group consisting of hydrogen, halogen, halogen-C1-7-alkyl, C1-7-alkoxy, halogen-C1-7-alkoxy and a 5- or 6-membered heterocyclic ring containing one or two nitrogen atoms, said ring being optionally substituted by C1-7-alkyl or halogen. The proline derivatives of the formula I are preferential inhibitors of the cysteine protease Cathepsin S and are therefore useful to treat metabolic diseases like diabetes, atherosclerosis, abdominal aortic aneurysm, peripheral arterial disease and diabetic nephropathy.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: August 5, 2014
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Bjoern Bartels, Fritz Bliss, Philipp Cueni, Christophe Pfleger, Ulrich Zutter
  • Publication number: 20110313196
    Abstract: The present invention relates to a process for the preparation of benzamide derivatives which are useful as intermediates in the preparation of pharmaceutically active compounds.
    Type: Application
    Filed: June 6, 2011
    Publication date: December 22, 2011
    Inventors: Stephan Bachmann, Fritz Bliss, Ralph Diodone, Stefan Hildbrand, Michael Kammerer, Christophe Pfleger, Reinhard Reents, Michelangelo Scalone
  • Publication number: 20060128970
    Abstract: The present invention relates to the manufacture of the compounds of formula (I) said compounds of formula (I) being valuable intermediates in the manufacture of Dolastatin 10 analogues, which are useful in the treatment of cancer.
    Type: Application
    Filed: December 13, 2005
    Publication date: June 15, 2006
    Inventors: Fritz Bliss, Michel Lalonde, Rudolf Schmid, Rene Trussardi