Patents by Inventor Alfonso Di Serio

Alfonso Di Serio 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).

  • Compounds useful as detergent additives for lubricants and lubricating compositions
    Patent number: 5021174
    Abstract: The alkali-metal and alkaline-earth-metal salts are disclosed of a monoester of a bicarboxy acid having the formula: ##STR1## wherein R is alkyl, R.sup.1 is either hydrogen or alkyl, R.sup.2 is alkyl and A is nothing or alkylene, and the corresponding hyperbasic derivatives, useful as detergent additives for lubricants.Also the lubricating compositions containing such additives are disclosed.
    Type: Grant
    Filed: February 8, 1990
    Date of Patent: June 4, 1991
    Assignees: Euron S.p.A., Agip Petroli S.p.A.
    Inventors: Paolo Koch, Alfonso Di Serio