Patents by Inventor John B. Markway

John B. Markway 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).

  • Ice breaker for an architectural metal roof
    Patent number: 10954675
    Abstract: An ice breaker for installation on an architectural roof on a flat between the seams of a metal panel. The ice breaker has a pointed upslope end and an irregular polygon base with non-equilateral triangular faces extending from the irregular polygonal base that meet at a truncated top. The non-equilateral triangular faces at the upslope end being symmetrical about a centerline axis.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: March 23, 2021
    Inventor: John B. Markway