Patents by Inventor Worth F. Vaughan

Worth F. Vaughan 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).

  • Microwave-assisted steam sterilization of dental and surgical instruments
    Patent number: 6646241
    Abstract: A surgical and dental instrument sterilizer is described. Liquid water is rapidly vaporized by microwave heating and steam is generated to attain a steam pressure of approximately 47 psi and a temperature of approximately 135° C. in the region of the articles to be sterilized. Micron-size water-droplets are intermittently sprayed onto the articles which are arranged on a tray, from both the top and from underneath thereof so as to thoroughly wet the surfaces. A 30-90 s duration of droplet spray is followed by pulsed microwave irradiation of the top and underneath surfaces for a similar period, as an example; this is followed by a plurality of spray/microwave cycles.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: November 11, 2003
    Assignee: Ecofriend Technologies, Inc.
    Inventors: Ravi Varma, Worth F. Vaughan