Patents by Inventor Eric R. St-Louis

Eric R. St-Louis 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).

  • Infrared asphalt heater
    Patent number: 5148799
    Abstract: An infrared asphalt cold seam heater vehicle is self-propelled and has sidewardly extending infrared heating chambers for heating existing asphalt to soften it for bonding with freshly laid asphalt to minimize premature failure. The heater has heating chambers attachable to either the right or left side of the vehicle.
    Type: Grant
    Filed: April 23, 1991
    Date of Patent: September 22, 1992
    Assignee: Equipments St. Louis & Fils, Inc.
    Inventors: Eric R. St-Louis, Jonathan P. St-Louis, Kai G. St-Louis