Patents by Inventor George Buchi

George Buchi 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).

  • Synthesis of hydroxycyclopenten-1-ones
    Patent number: 4071542
    Abstract: This invention relates to a process for the preparation of 2-alkenyl-4-hydroxy-3-methyl-2-cyclopenten-1-ones from the reaction product of 2,4-pentane dione and a 2-propen- or 2-propyn-1-ol derivative including intermediates therein.
    Type: Grant
    Filed: March 25, 1977
    Date of Patent: January 31, 1978
    Assignee: Hoffmann-La Roche Inc.
    Inventor: George Buchi
  • Unsaturated ketones
    Patent number: 4032577
    Abstract: This invention relates to a process for the preparation of 2-alkenyl-4-hydroxy-3-methyl-2-cyclopenten-1-ones from the reaction product of 2,4-pentane dione and a 2-propen-or 2-propyn-1-ol derivative including intermediates therein.
    Type: Grant
    Filed: April 28, 1976
    Date of Patent: June 28, 1977
    Assignee: Hoffmann-La Roche Inc.
    Inventor: George Buchi
  • Synthesis of hydroxycyclopenten-1-ones
    Patent number: 3978093
    Abstract: This invention relates to a process for the preparation of 2-alkenyl-4-hydroxy-3-methyl-2-cyclopenten-1-ones from the reaction product of 2,4-pentane dione and a 2-propen-or 2-propyn-1-ol derivative including intermediates therein.
    Type: Grant
    Filed: February 6, 1975
    Date of Patent: August 31, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventor: George Buchi