The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 11, 2014
Filed:
Sep. 08, 2010
Keith C. Hong, Litiz, PA (US);
Husnu M. Kalkanoglu, Swarthmore, PA (US);
Ming Liang Shiao, Collegeville, PA (US);
Anne B. Hardy, Acton, MA (US);
James A. Salvatore, Worcester, MA (US);
Andrew G. Johnson, Barre, MA (US);
Keith C. Hong, Litiz, PA (US);
Husnu M. Kalkanoglu, Swarthmore, PA (US);
Ming Liang Shiao, Collegeville, PA (US);
Anne B. Hardy, Acton, MA (US);
James A. Salvatore, Worcester, MA (US);
Andrew G. Johnson, Barre, MA (US);
CertainTeed Corporation, Valley Forge, PA (US);
Abstract
Algae-resistant roofing shingles are formed by extruding a mixture of mineral particles and a binder to form porous granule bodies, and algaecide is distributed in the pores to provide alqae-resistant granules, which are subsequently applied to roofing shingles. Release of the algaecide is controlled by the structure of the granules.