Patents by Inventor Gian L Castiglioni

Gian L Castiglioni 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 production of gamma-butyrolactone
    Patent number: 6297389
    Abstract: A process for the production of gamma-butyrolactone. Starting from maleic and/or succinic anhydride the conversion takes place in the presence of a catalyst composed of copper oxide and zinc oxide.
    Type: Grant
    Filed: June 20, 2000
    Date of Patent: October 2, 2001
    Assignee: Lonza S.p.A.
    Inventors: Gian L Castiglioni, Carlo Fumagalli