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. 23, 2014
Filed:
Oct. 21, 2010
Aaron Hollman, Hebron, KY (US);
Russell Schwartz, Cincinnati, OH (US);
David Kozak, Fairfield, OH (US);
Aaron Hollman, Hebron, KY (US);
Russell Schwartz, Cincinnati, OH (US);
David Kozak, Fairfield, OH (US);
Sun Chemical Corporation, Parsippany, NJ (US);
Abstract
The current invention relates to a piezochromic device wherein said device exhibits a reversible change in appearance initialed by an external applied force and then reverts back to its original appearance over a set relaxation time when the external force is removed. In one embodiment, a device comprising a transparent or semi-transparent cover layer and a magnetic layer, wherein between the cover layer and the magnetic layer is a liquid medium containing magnetically alignable pigments.