Patents by Inventor Herman Mack

Herman Mack 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).

  • 2.9 to 5.1 volt powered, inductor-less step up DC to DC converter
    Patent number: 6028419
    Abstract: A voltage converter for a portable electronic includes a first switching circuit for charging a first capacitor responsively to a first control signal and a second switching circuit for charging a second capacitor responsively to a second control signal. The first and second switching circuits are further adapted to enable charging of the first capacitor to a greater potential than the first switching circuit alone.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: February 22, 2000
    Assignee: ITT Manufacturing Enterprises, Inc.
    Inventor: Herman Mack