Patents by Inventor John J. Wetula

John J. Wetula 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).

  • Gas filtering device for air bag gas generator
    Patent number: 5494506
    Abstract: A gasket arrangement is provided for a filter in a pyrotechnic gas generator which includes a compressed sheet formed of a combination of intercalated graphite particles and exfoliated flexible graphite particles.
    Type: Grant
    Filed: January 17, 1995
    Date of Patent: February 27, 1996
    Assignee: UCAR Carbon Technology Corporation
    Inventors: Brian M. Ford, John J. Wetula
  • Fire retardant oriented strand board structure element
    Patent number: 5443894
    Abstract: This invention relates to a fire retardant wooden structural element, such as the web of a wooden joist, a wall panel, exterior or interior siding panel or the like, which is formed of oriented strand board (OSB) having outer layers which contain particles of expandable graphite and a core layer which is free of expandable graphite.
    Type: Grant
    Filed: July 29, 1994
    Date of Patent: August 22, 1995
    Assignee: Ucar Carbon Technology Corporation
    Inventors: Mark W. Pollock, John J. Wetula, Brian M. Ford