The following products are protected by at least the indicated United States Patents assigned to Head and use virtual patent marking. This website is provided to satisfy the virtual patent marking provisions of various jurisdictions including the virtual patent marking provisions of the America Invents Act, 35 U.S.C. § 287(a). Foreign patents not listed here, may also apply. Additional patents may be pending in the United States or elsewhere. Products that are protected by U.S. Patents, but which are not virtually marked, may not appear on this list.