Patents by Inventor Lois A. Ellis

Lois A. Ellis 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).

  • Hydrofluoroalkanes as cleaning and degreasing solvents
    Patent number: 5696307
    Abstract: Hydrofluoroalkanes useful as solvents, especially for vapor degreasing and solvent cleaning, are one or many of the following formulae:CHF.sub.2 --X--(CHF).sub.n --X--Ywherein X is selected from the group consisting of CHF, CF.sub.2 and CH.sub.2, Y is CH.sub.3, and n is 0, 1 or 2.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: December 9, 1997
    Assignee: AlliedSignal Inc.
    Inventors: Michael Van Der Puy, Rajat Subhra Basu, David Nalewajek, Lois A. Ellis