Patents by Inventor Guilio Maffii

Guilio Maffii 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).

  • 2-Imidazolidione derivatives
    Patent number: 4011238
    Abstract: Imidazolidinone derivatives of the formula ##STR1## where R, R.sub.1, R.sub.2 and R.sub.3 independently are hydrogen or lower alkyl, X represents one or two substituents selected from the group lower alkyl, halo, lower alkoxy, trifluoromethyl, and their pharmaceutically-acceptable acid salts.The compounds are prepared essentially by the method described by Wright in J. Med. Chem. 9, 852 (1966). The compounds have high depressant activity on the central nervous system.
    Type: Grant
    Filed: July 7, 1975
    Date of Patent: March 8, 1977
    Assignee: Gruppo Lepetit S.p.A.
    Inventors: Luigi Fontanella, Guilio Maffii