Patents by Inventor David D. Schwarting

David D. Schwarting 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).

  • Process for producing direct tooling mold and method for using the same
    Patent number: 6355196
    Abstract: The present invention relates to a method for making a prototype by providing at least one polymeric board material having a glass transition temperature less than the molten temperature of a thermoplastic molding material and removing at least a portion of the polymeric board material to form, according to a computer-aided design, a reverse image of a desired article to be molded. Selected molten polymeric molding material is injected into the resulting mold to produce the desired prototype.
    Type: Grant
    Filed: March 16, 1998
    Date of Patent: March 12, 2002
    Assignee: Vantico Inc.
    Inventors: Mahesh Arvind Kotnis, Brian H. Kukulies, Kenneth R. Filipiak, David D. Schwarting