Patents by Inventor Suzanne Zefferi

Suzanne Zefferi 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).

  • Fluorinated cleaning solvents
    Patent number: 5750488
    Abstract: Cleaning compositions contain one or more fluorinated chemical and one or more acetal. The cleaning compositions have good volatility, low flammability, low toxicity, good cleaning ability, and do not harm the ozone layer.
    Type: Grant
    Filed: January 4, 1996
    Date of Patent: May 12, 1998
    Assignee: CRC Industries, Inc.
    Inventors: Malcolm W. Haskell, Richard Miller, Suzanne Zefferi