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:
Dec. 26, 2011
Filed:
Nov. 15, 2001
Peter L. Zaleski, Redmond, WA (US);
David J. Derwin, Prospect Heights, IL (US);
Walter H. Flood, Chicago, IL (US);
Peter L. Zaleski, Redmond, WA (US);
David J. Derwin, Prospect Heights, IL (US);
Walter H. Flood, Chicago, IL (US);
Superior Graphite Co., Chicago, IL (US);
Abstract
An electrically conductive paving system that has enhanced conductivity of the conductive graphite/asphalt layer. This is achieved by incorporating into the paving mixture a blend of two naturally occurring crystalline flake graphites, one being coarse (generally larger than 40 mesh/425 microns) and the other being fine (generally smaller than 100-200 mesh/150-75 microns). The ratio of course flake graphite to fine flake graphite may be from 1.5:1 and 1:1.5, but is preferably approximately 1:1.