Patents by Inventor Casimiro Pace

Casimiro Pace 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 reducing the back migration in mechanical vacuum pumps operating with perfluoropolyether oils
    Patent number: 5571780
    Abstract: The invention relates to a process for reducing the back migration of the most volatile fractions of perfluoropolyethers during the operation of mechanical vaccum-generating pumps which utilize perfluoropolyethers: use is made of perfluoropolyethers containing not more than 0.1% by weight of fractions having a molecular weight lower than or equal to 1,500 and not more than 1.3% by weight of fractions having a molecular weight lower than or equal to 1,800.
    Type: Grant
    Filed: February 9, 1996
    Date of Patent: November 5, 1996
    Assignee: Ausimont S.p.A.
    Inventors: Rossella Silvani, Valerio Carsetti, Casimiro Pace, Padmanabhan Srinivasan