Patents by Inventor Mark R. Mason

Mark R. Mason 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).

  • Trianionic ligand precursor compounds and uses thereof in constrained geometry catalysts
    Patent number: 8524846
    Abstract: Trianionic ligand precursor compounds, catalyst systems containing the precursor compounds, and uses of the precursor compounds are described. The present invention also provides constrained geometry catalysts, methods to make the constrained geometry catalysts and methods to use the constrained geometry catalysts in various reaction systems, including polymerization, metathesis reactions, and hydroamination reactions.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: September 3, 2013
    Assignee: The University of Toledo
    Inventor: Mark R. Mason
  • Brush chipping machine with in-line drive system
    Patent number: 5680998
    Abstract: A brush chipping machine having an in-line, direct drive connection between the engine drive shaft and the rotor shaft which carries the chipping mechanism. The direct drive system allows the engine and chipping mechanism to be arranged side by side for a more compact configuration of the equipment. Belt drives and the associated maintenance and safety problems are avoided. The feed table and feed chute through which brush is fed to the chipper mechanism can be located close to the curb side of the machine for enhanced convenience and safety.
    Type: Grant
    Filed: August 1, 1996
    Date of Patent: October 28, 1997
    Assignee: Altec Industries, Inc.
    Inventors: Mark R. Mason, Harvey T. Satterwhite
  • Telephone handset
    Patent number: D364620
    Type: Grant
    Filed: December 2, 1994
    Date of Patent: November 28, 1995
    Assignee: Nokia Mobile Phones Ltd.
    Inventors: Sean Prior, Mark R. Mason
  • Portion of a battery for a portable electronic apparatus
    Patent number: D405048
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: February 2, 1999
    Assignee: Nokia Mobile Phones Limited
    Inventor: Mark R. Mason
  • Battery for a portable electronic apparatus
    Patent number: D405752
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: February 16, 1999
    Assignee: Nokia Mobile Phones Limited
    Inventor: Mark R. Mason