Patents by Inventor Peter Buchs

Peter Buchs 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).

  • Concentrated injection solution of alkali metal salts of reduced folates
    Patent number: 5814635
    Abstract: A concentrated, stable solution, especially an injection solution, which comprises water and either sodium-leucovorin or potassium-leucovorin or sodium-N(5)-methyl-5,6,7,8-tetrahydrofolic acid or potassium-N(5)-methyl-5,6,7,8-tetrahydrofolic acid. Also described is a process for the preparation of the solution, as well as its uses.
    Type: Grant
    Filed: July 2, 1997
    Date of Patent: September 29, 1998
    Assignee: Cerbios-Pharma S.A.
    Inventors: Peter Buchs, Fabrizio Marazza
  • Synthesis of artemisininelactol derivatives
    Patent number: 5011951
    Abstract: A process for the epimerization of .alpha.- to .beta.-ethyletherartemisininelactol (arteether) or preparation of arteether, useful in the treatment of malaria, from artemisininelactol, comprises reacting starting material in a solvent including an acid catalyst, the reaction of artemisininelactol also including an etherifying ethyl moiety, and isolating the product.
    Type: Grant
    Filed: February 27, 1989
    Date of Patent: April 30, 1991
    Assignee: World Health Organization
    Inventors: Peter Buchs, Arnold Brossi