Patents by Inventor David Ollett

David Ollett 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).

  • Publication number: 20080044626
    Abstract: An asphalt-based roofing material includes a coating having a top portion containing a mixture of asphalt and igneous and/or metamorphic rock particles, while the mat portion of the coating contains a mixture of asphalt and a filler which contains less than 10% igneous and/or metamorphic lock particles In other embodiments, the top portion but not the bottom portion of the coating meets or exceeds a pliability standard, passes a weathering performance test, or has a high solar reflectance. In another embodiment relating to a laminated roofing material, the top portion but not the bottom portion has viscoelastic properties effective to prevent the coating from sticking to an adjacent shingle in a bundle The invention also relates to a continuous process of applying first and second coatings to a mat for manufacturing a roofing material.
    Type: Application
    Filed: July 3, 2007
    Publication date: February 21, 2008
    Inventors: David Aschenbeck, Carla Miller, David Ollett