Patents by Inventor Joseph H. Varvel

Joseph H. Varvel 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).

  • Patent number: 5140495
    Abstract: An electrostatic discharge collection device for mounting in an air delivery duct system leading into a carpeted area for neutralizing an electrostatic charge in the air prior to its entering into the carpeted area so as to prevent or reduce a problem known as pooling in the carpet.
    Type: Grant
    Filed: October 20, 1989
    Date of Patent: August 18, 1992
    Inventor: Joseph H. Varvel