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This website shall satisfy legal patent marking/notice provisions of various jurisdictions including the virtual patent marking and notice provisions of 35 U.S.C. § 287(a). The following CentraVent products and services are covered by one or more of the following associated U.S. Patents 10,619,872 • 10,760,802  • 12,152,794. Additional patents may be pending in the United States and elsewhere – please contact us if you have questions.