Mastershield offers gutter guards made to be installed on any type of gutter or roof. It uses a micromesh technology invented and patented in 2001 by Alex Higgenbotham. MasterShield gutter guards are ...

The U.S. Patent Office recognized a fifth patent for MasterShield gutter guard microfilters with MicroVortex technology this year. The patent defines microfiltration in gutter guards for the first ...

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