Patents by Inventor Paul Parks

Paul Parks 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).

  • Multi-part catalyst system for exhaust treatment elements
    Publication number: 20050135977
    Abstract: An exhaust treatment element may include a substrate and a first catalyst layer including a first promoter disposed on the substrate. The exhaust treatment element may also include a second catalyst layer including a second promoter disposed on the first catalyst layer. In addition to a multi-layer catalyst, the exhaust treatment element may include a series catalyst system where a first and second catalyst are disposed in separate regions along the length of the substrate.
    Type: Application
    Filed: December 19, 2003
    Publication date: June 23, 2005
    Inventors: Paul Park, Carrie Boyer
  • Resonant-cavity antenna for plasma heating
    Patent number: 4661304
    Abstract: Disclosed is a resonant coil cavity wave launcher for energizing a plasma immersed in a magnetic field. Energization includes launching fast Alfven waves to excite ion cyclotron frequency resonances in the plasma. The cavity includes inductive and capacitive reactive members spaced no further than one-quarter wavelength from a first wall confinement chamber of the plasma. The cavity wave launcher is energized by connection to a waveguide or transmission line carrying forward power from a remote radio frequency energy source.
    Type: Grant
    Filed: January 10, 1984
    Date of Patent: April 28, 1987
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Francis W. Perkins, Jr., Shiu-Chu Chiu, Paul Parks, John M. Rawls