Patents by Inventor Andrew J. Duffy

Andrew J. Duffy 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).

  • Filter and method of forming
    Patent number: 5372380
    Abstract: An airbag assembly including an inflatable airbag, an ignitable propellant charge for generating inflating gas and a filter between the interior of the airbag and the propellant charge. The filter comprising a porous carbon foam substrate coated substantially throughout with a thermally and structurally stable material which has been formed in situ by chemical vapor deposition techniques.
    Type: Grant
    Filed: May 20, 1993
    Date of Patent: December 13, 1994
    Assignee: Ultramet
    Inventors: Andrew J. Duffy, Richard B. Kaplan, Stanley A. Racik, Edwin P. Stankiewicz, Robert H. Tuffias, Brian E. Williams