Patents by Inventor Mark L. Vandenberg

Mark L. Vandenberg 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: 5218722
    Abstract: A tie fastener and related method of use is disclosed. The tie fastener generally includes a front wall having upper, lower and side walls adjoined to one another, thereby forming a hollow interior, accessible via an open rear and a plurality of passages for accommodating a necktie. The fastener provides a retainer bar and alternative guide wall within its interior to engage a necktie and thus secure the necktie when worn by the user.
    Type: Grant
    Filed: May 6, 1992
    Date of Patent: June 15, 1993
    Inventor: Mark L. Vandenberg