Patents by Inventor Ranbir Heer

Ranbir Heer 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).

  • Continuous digestion of chip blends containing a western red cedar chip furnish
    Patent number: 8524037
    Abstract: A process is provided for delignifying lignocellulosic material, including feeding a lignocellulosic blend comprising a Western Red Cedar (WRC) chip furnish and a second lignocellulosic material into an aqueous alkaline pulping solution at the feed end of a digester to produce a lignocellulosic mass. The second lignocellulosic material is provided in a proportion that increases the density of the mass to enable the mass to move through the digester while minimizing production effects associated with low density WRC chips. The mass moves through the digester to produce a pulp that may be bleached.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: September 3, 2013
    Assignee: Canfor Pulp and Paper Sales Ltd.
    Inventors: Ranbir Heer, Paul Watson
  • Continuous Digestion of Chip Blends Containing a Western Red Cedar Chip Furnish
    Publication number: 20110186250
    Abstract: A process is provided for delignifying lignocellulosic material, including feeding a lignocellulosic blend comprising a Western Red Cedar (WRC) chip furnish and a second lignocellulosic material into an aqueous alkaline pulping solution at the feed end of a digester to produce a lignocellulosic mass. The second lignocellulosic material is provided in a proportion that increases the density of the mass to enable the mass to move through the digester while minimizing production effects associated with low density WRC chips. The mass moves through the digester to produce a pulp that may be bleached.
    Type: Application
    Filed: January 19, 2011
    Publication date: August 4, 2011
    Inventors: Ranbir Heer, Paul Watson