Patents by Inventor Tim Stahlberg

Tim Stahlberg 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).

  • Purification of 5-Hydroxymethylfurfural (HMF) by Crystallization
    Publication number: 20150025256
    Abstract: This invention relates to an efficient procedure for purifying HMF by crystallization at low temperature from an organic solvent.
    Type: Application
    Filed: August 17, 2012
    Publication date: January 22, 2015
    Inventors: Tim Ståhlberg, Jacob Skibsted Jensen, Anders Riisager, John M. Woodley
  • A NEW PROCESS FOR PREPARING 4-[4-METHYL-5-(CL-10ALKYLTHIO/C5-10ARYL-CL-6ALKYLTHIO)-4H-1,2,4-TRIAZOL-3-YL]PYRIDINES
    Publication number: 20110295016
    Abstract: The invention relates to a method of manufacturing a compound according to formula (I) wherein R is C1-6alkylor C5-10aryl-C1-6alkyl, comprising the steps of: a) reacting isonicotinohydrazide and methyl isothiocyanate, thereby obtaining 2-isoni-cotinoyl-N-methylhydrazinecarbothioamide; b) under alkaline conditions allowing said 2-isonicotinoyl-N-methylhydrazinecar-bothioamide to undergo a ring-forming reaction, thereby obtaining 4-methyl-5-pyridin-4-yl-2,4-dihydro-3H-1,2,4-triazole-3-thione; and c) under alkaline conditions allowing said 4-methyl-5-pyridin-4-yl-2,4-dihydro-3H-1,2,4-triazole-3-thione to react with R—X, wherein R has the same meaning as in formula I and X is selected from the group of Cl, Br and I, thereby obtaining a compound according to formula I; wherein steps a), b) and c) are carried out in an aqueous environment without intermediate isolations.
    Type: Application
    Filed: December 11, 2009
    Publication date: December 1, 2011
    Applicant: ASTRAZENECA AB
    Inventors: Hans Åström, Elfyn Jones, Tim Ståhlberg
  • MULTIMERIC MAGNETIC RESONANCE CONTRAST AGENTS
    Publication number: 20090238768
    Abstract: The present invention relates to novel compounds of formula (I) and (II), compositions comprising compounds of formula (II) and their use as contrast agents in magnetic resonance (MR) imaging (MRI) and MR spectroscopy (MRS).
    Type: Application
    Filed: December 1, 2006
    Publication date: September 24, 2009
    Inventors: Oskar Axelsson, Haukur Johannesson, Andreas Meijer, Andreas Olsson, Tim Stahlberg, Mikkel Thaning, Duncan Wynn, Anders Brathe