Patents by Inventor Roman Kozlowski

Roman Kozlowski 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 of protecting a surface
    Patent number: 6224944
    Abstract: The invention concerns a method of protecting a surface of a carbonatic material from corrosion, the method comprising treatment of the material surface with an acidic cationic silica sol, the pH of the sol preferably being from about 4 to about 7. The invention also concerns a new silica sol useful for performing the method and a method of preparing the new silica sol. Further, the invention concerns carbonatic material comprising a surface layer of silica, the surface of the silica particles comprising a polyvalent metal oxide/hydroxide.
    Type: Grant
    Filed: October 27, 1994
    Date of Patent: May 1, 2001
    Assignee: EKA Nobel AB
    Inventors: Marek Tokarz, Michael Persson, Roman Kozlowski
  • Method of protecting a surface
    Patent number: 5747171
    Abstract: A method of protecting a porous material sensitive to corrosion caused by pollutants in the atmosphere. The method comprises treating the surface of the material with an agent containing more than 90% by weight of silica sol. The agent contains substantially no solid particles with a diameter exceeding about 1 micron. Porous building materials comprising a layer of gelled silica sol present in the pores below the material surface are prepared by the method.
    Type: Grant
    Filed: April 17, 1996
    Date of Patent: May 5, 1998
    Assignee: Eka Chemicals AB
    Inventors: Marek Tokarz, Michael Persson, Roman Kozlowski