Patents by Inventor Jörgen Blixt

Jörgen Blixt 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).

  • Process
    Patent number: 6689911
    Abstract: An integrated process for preparing &agr;-(2,4-disulfophenyl)-N-tert-butylnitrone and its salts is disclosed in which N-tert-butylhydroxylamine acid addition salt is incompletely neutralised so as to leave catalytic amounts of acid and the neutralisation product is condensed with an appropriate aldehyde.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: February 10, 2004
    Assignees: Centaur Pharmaceuticals, Inc., AstraZeneca AB
    Inventors: Henry Kruk, John McGinley, Sergei Pouhov, John Vajda, Allan Wilcox, Jörgen Blixt, Ulf Larsson
  • Salts of N-tert-butylhydroxylamine
    Patent number: 6512143
    Abstract: Novel salts of N-tert-butylhydroxylamine with lower carboxylic acids are disclosed, together with processes for their preparation. The salts possess advantageous properties that render them useful in synthesis.
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: January 28, 2003
    Assignee: AstraZeneca AB
    Inventor: Jörgen Blixt
  • Process for the preparation of &agr;-(2-4-disulfophenyl)-N-tert-burtylnitrone and pharmaceutically acceptable salts thereof
    Patent number: 6479697
    Abstract: A process for the preparation of &agr;-(2,4-disulfophenyl)-N-tert-butylnitrone diacids and pharmaceutically acceptable salts thereof by the reaction of the corresponding disulfophenyl aldehyde with N-tert-butylhydroxylammonium acetate is disclosed.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: November 12, 2002
    Assignee: AstraZeneca AB
    Inventors: Henry Kruk, John McGinley, Sergei Pouhov, John Vajda, Jörgen Blixt