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 ...

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 ...

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