Patents by Inventor Sabrina M. Yard

Sabrina M. Yard 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 element
    Patent number: 4886058
    Abstract: A filter element adapted for attachment to a respirator face piece which includes front and rear walls of filter material, a breather tube, and a porous inner layer which maintains the front and rear walls in a spaced-apart relationship over substantially their entire area and which functions to evenly distribute air flow across the available filter element surface area.
    Type: Grant
    Filed: May 17, 1988
    Date of Patent: December 12, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Gerald M. Brostrom, Daniel A. Japuntich, Sabrina M. Yard
  • Filter element
    Patent number: RE35062
    Abstract: A filter element adapted for attachment to a respirator face piece which includes front and rear walls of filter material, a breather tube, and a porous inner layer which maintains the front and rear walls in a spaced-apart relationship over substantially their entire area and which functions to evenly distribute air flow across the available filter element surface area.
    Type: Grant
    Filed: June 17, 1993
    Date of Patent: October 17, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Gerald M. Brostrom, Daniel A. Japuntich, Sabrina M. Yard