Patents by Inventor Patrick Mattes

Patrick Mattes 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).

  • Method and apparatus for charging a piezoelectric element
    Publication number: 20010028204
    Abstract: The invention describes a method and an apparatus for charging a piezoelectric element of a fuel injection system for, for example, an internal combustion engine. The apparatus is characterized in that the piezoelectric element is activated by an activation voltage having a value set as a function of measured fuel pressure in the fuel injection system.
    Type: Application
    Filed: April 2, 2001
    Publication date: October 11, 2001
    Inventors: Johannes-Jorg Rueger, Patrick Mattes, Alexander Hock