Patents by Inventor Johanna Wachtmeister

Johanna Wachtmeister 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 for the synthesis of alkyl phosphinic acids by initiation of an amine and an amineoxide
    Patent number: 8026384
    Abstract: The present invention relates to a new process for the synthesis of alkyl phosphinic acids, and more particularly to a coupling reaction between an alkylhalide and a hypophosphorous acid derivative in the presence of an amine and an amineoxide.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: September 27, 2011
    Assignee: AstraZeneca AB
    Inventors: Daniel Finnhult, Roger Sohlberg, Fredrik Stalfors, Carina Svensson, Johanna Wachtmeister, Thomas Wannman
  • PROCESS FOR THE SYNTHESIS OF ALKYL PHOSPHINIC ACIDS BY INITIATION OF AN AMINE AND AN AMINEOXIDE
    Publication number: 20100130773
    Abstract: The present invention relates to a new process for the synthesis of alkyl phosphinic acids, and more particularly to a coupling reaction between an alkylhalide and a hypophosphorous acid derivative in the presence of an amine and an amineoxide.
    Type: Application
    Filed: April 30, 2008
    Publication date: May 27, 2010
    Applicant: ASTRAZENECA AB
    Inventors: Daniel Finnhult, Roger Sohlberg, Fredrik Stalfors, Carina Svensson, Johanna Wachtmeister, Thomas Wannman
  • Process for the preparation of alkyl phosphinates
    Patent number: 7557234
    Abstract: The invention relates to a new process for the production of alkyl dialkoxyalkylphosphinates. A hypophosphite salt is used in the process.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: July 7, 2009
    Assignee: AstraZeneca AB
    Inventors: Maths Nilsson, Mats Thelin, Johanna Wachtmeister
  • Process for the Preparation of Alkyl Phosphinates
    Publication number: 20080319231
    Abstract: The invention relates to a new process for the production of alkyl dialkoxyalkylphosphinates. A hypophosphite salt is used in the process.
    Type: Application
    Filed: September 12, 2005
    Publication date: December 25, 2008
    Inventors: Maths Nilsson, Mats Thelin, Johanna Wachtmeister