Patents by Inventor Karen Louise Scrivener

Karen Louise Scrivener 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).

  • Non-efflorescing cementitious bodies
    Patent number: 6923857
    Abstract: A non-efflorescing cementitious body is formed from sources of calcium aluminate, calcium silicate, calcium sulphate and reactive silica, these ingredients being present in such relative proportions that, upon hydration, both monosulphate (C3A.C?.12H) and hydrated alumina (AH3) are formed. Also disclosed is a hydraulic binder and a paste from which such bodies can be formed and a method for forming such bodies. In addition to exhibiting low efflorescence, these bodies retain satisfactory physical properties, especially good durability to natural weathering conditions.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: August 2, 2005
    Assignee: Lafarge Aluminates
    Inventors: Anastasia George Constantinou, Colin Dow, Charles Hubert Fentiman, Mary Ruth Hoy, Karen Louise Scrivener
  • Non-efflorescing cementitious bodies
    Publication number: 20040035328
    Abstract: A non-efflorescing cementitious body is formed from sources of calcium aluminate, calcium silicate, calcium sulphate and reactive silica, these ingredients being present in such relative proportions that, upon hydration, both monosulphate (C3A.Cŝ.12H) and hydrated alumina (AH3) are formed. Also disclosed is a hydraulic binder and a paste from which such bodies can be formed and a method for forming such bodies. In addition to exhibiting low efflorescence, these bodies retain satisfactory physical properties, especially good durability to natural weathering conditions.
    Type: Application
    Filed: June 27, 2003
    Publication date: February 26, 2004
    Inventors: Anastasia George Constantinou, Colin Dow, Charles Hubert Fentiman, Mary Ruth Hoy, Karen Louise Scrivener