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:
Jul. 09, 2019
Filed:
Aug. 28, 2015
Cal Poly Corporation, San Luis Obispo, CA (US);
Andres W. Martinez, Pismo Beach, CA (US);
Haydn T. Mitchell, Hanover, NH (US);
Chad E. Immoos, San Luis Obispo, CA (US);
Nathaniel W. Martinez, Arroyo Grande, CA (US);
Philip J. Costanzo, San Luis Obispo, CA (US);
Samantha J. Carlton, Ventura, CA (US);
Cal Poly Corporation, San Luis Obispo, CA (US);
Abstract
A reagent-loaded pencil, method of preparing a reagent-loaded pencil, and a system that uses reagent-loaded pencils are disclosed. The reagent-loaded pencil or pencils include a matrix of at least a soluble carrier, a hardening substance, and a reagent. The pencils also include a sheath disposed around at least a portion of the matrix. The soluble carrier may include poly(ethylene glycol) methyl ether. The hardening substance may leave a visible mark when abraded against a writing surface. One example of such a substance includes graphite. The sheath may be the outside of a wooden pencil or a mechanical pencil. A system that uses reagent-loaded pencils or compressed matrices may include a computer-controlled plotter that holds and plots with at least one of the reagent-loaded pencils or matrices.