Patents by Inventor Edgar R. Markwell

Edgar R. Markwell 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).

  • Protective garment
    Patent number: 4860382
    Abstract: A protective garment is shown for protecting the wear against noxious chemicals in liquid aerosol and vapor form. The protective garment is made up of two separate plies, the first ply comprising a fire retardant fabric having bonded to it a microporous material arranged such that the microporous material can allow passage of moisture vapor but prevent passage of droplets in liquid; and a second inner ply including a vapor absorbent material.
    Type: Grant
    Filed: December 22, 1987
    Date of Patent: August 29, 1989
    Assignee: Freudenberg Nonwovens Ltd.
    Inventor: Edgar R. Markwell