Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
William Brian Ward0
Xiujuan Zhang0
Chris Armintrout0
Donn R. Vermilion0
Date of Patent
October 5, 2021
Patent Application Number
20190807
Date Filed
August 7, 2019
Patent Citations Received
Patent abstract
A shingle includes a substrate having an asphalt coating on a top surface of the substrate and on a bottom surface of the substrate. A surface layer of granules is embedded in the asphalt on the top surface of the substrate. A backdust layer of particles is embedded in the asphalt on the bottom surface of the substrate. A sealant is disposed on the backdust. A hydrophobic material is applied to the sealant.
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