Patents by Inventor Christopher Paul Sandoval

Christopher Paul Sandoval 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).

  • Coated roofing insulation and roofing systems including such insulations
    Patent number: 6398976
    Abstract: A single ply membrane roofing system includes a roofing insulation board which, preferably, is at least 45% by dry weight expanded perlite. One major surface of the insulation board is coated with a latex coating comprising, by dry weight, between 48.3% and 96% clay; between 3.1% and 33.3% latex; and between 0% and 34% sodium silicate. A single ply roofing membrane is adhered to the coated major surface of the insulation board with a roofing contact adhesive.
    Type: Grant
    Filed: September 20, 2000
    Date of Patent: June 4, 2002
    Assignee: Johns Manville International., Inc.
    Inventors: Christopher Paul Sandoval, Mary Margaret Georgene Bauer, Craig Donald DePorter, Mauro Vittorio Battaglioli
  • Coated roofing insulation and roofing systems including such insulations
    Patent number: 6177024
    Abstract: A single ply membrane roofing system includes a roofing insulation board which, preferably, is at least 45% by dry weight expanded perlite. One major surface of the insulation board is coated with a latex coating comprising, by dry weight, between 48.3% and 96% clay; between 3.1% and 33.3% latex; and between 0% and 34% sodium silicate. A single ply roofing membrane is adhered to the coated major surface of the insulation board with a roofing contact adhesive.
    Type: Grant
    Filed: February 14, 2000
    Date of Patent: January 23, 2001
    Inventors: Christopher Paul Sandoval, Mary Margaret Georgene Bauer, Craig Donald DePorter, Mauro Vittorio Battaglioli
  • Perlite-based insulation board
    Patent number: 6149831
    Abstract: An insulation board suitable for use as a roof insulating board has a density between about 8 and about 15 pounds per cubic foot; a MOR/density ratio of at least 10.5 to 1 and includes, by dry weight, between about 45% and about 76% expanded perlite; between about 15% and about 45% cellulosic fibers; between about 0.1% and about 10% latex binder; between about 2% and about 9% bituminous material; and about 0% to about 3% alum.
    Type: Grant
    Filed: February 18, 1999
    Date of Patent: November 21, 2000
    Assignee: Johns Manville International, Inc.
    Inventors: Craig Donald DePorter, Steven Douglas Dawson, Mauro Vittorio Battaglioli, Christopher Paul Sandoval
  • Perlite-based insulation board
    Patent number: 5749954
    Abstract: A perlite-based insulation board includes, by dry weight, between about 50% and about 76% expanded perlite; between about 15% and about 45% fibers; between about 1% and about 5% starch; between about 2% and about 9% bituminous material; and about 0% to about 3% alum. The fibers are between about 50% and about 95% by dry weight recycled newsprint fibers and between about 5% and about 50% by dry weight virgin cellulose fibers, such as flax and/or peanut hull fibers. In one embodiment, the virgin cellulose fibers are, by dry weight, between about 10% and 40% flax fibers and about 60% and 90% peanut hull fibers.
    Type: Grant
    Filed: July 15, 1996
    Date of Patent: May 12, 1998
    Assignee: Johns Manville International, Inc.
    Inventors: David Chee-Fai Law, Christopher Paul Sandoval, Ruben G. Garcia