Patents by Inventor Rejean Beaudoin

Rejean Beaudoin 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 to reduce scaling due to freezing and thawing in concrete
    Patent number: 5314755
    Abstract: A concrete surface having at least a residual amount of sodium fluorophosphate. A method to reduce scaling due to freezing and thawing is also disclosed. The method comprises contacting the surface of a concrete with a system containing at least sodium fluorophosphate. The sodium fluorophosphate closes the pores to water and other foreign matter.
    Type: Grant
    Filed: October 15, 1992
    Date of Patent: May 24, 1994
    Assignee: Domtar, Inc.
    Inventors: Bernard Malric, Rejean Beaudoin, Chantal Berthelot