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:
Oct. 10, 2006
Filed:
Jul. 24, 2002
Paul J. Glatkowski, Littleton, MA (US);
Nelson Landrau, Marlborough, MA (US);
David H. Landis, Jr., Barrington, RI (US);
Joseph W. Piche, Raynham, MA (US);
Jeffrey L. Conroy, Rumford, RI (US);
Paul J. Glatkowski, Littleton, MA (US);
Nelson Landrau, Marlborough, MA (US);
David H. Landis, Jr., Barrington, RI (US);
Joseph W. Piche, Raynham, MA (US);
Jeffrey L. Conroy, Rumford, RI (US);
Eikos, Inc., Franklin, MA (US);
Abstract
The invention is directed to conformal coatings that provide excellent shielding against electromagnetic interference (EMI). A conformal coating comprises an insulating layer and a conducting layer containing electrically conductive material. The insulating layer comprises materials for protecting a coated object. The conducting layer comprises materials that provide EMI shielding such as carbon black, carbon buckeyballs, carbon nanotubes, chemically-modified carbon nanotubes and combinations thereof. The insulating layer and the conductive layer may be the same or different, and may be applied to an object simultaneously or sequentially. Accordingly, the invention is also directed to objects that are partially or completely coated with a conformal coating that provides EMI shielding.