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:
Apr. 18, 2017
Filed:
Dec. 10, 2014
The United States of America, As Represented BY the Secretary of the Navy, Washington, DC (US);
Marc Currie, Gaithersburg, MD (US);
David Kurt Gaskill, Alexandria, VA (US);
Anindya Nath, Fairfax, VA (US);
The United States of America, as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
An appropriately configured pulsed laser is focused onto a graphene sheet and is used to form a desired pattern in the graphene. When the laser pulse strikes the graphene, it modifies the bonding state of the carbon atoms in the graphene lattice, acting as a 'blade' and causing a separation in the graphene sheet at the site of the laser pulse without causing damage to the surrounding graphene. The width of the separation, or 'cut' in the graphene sheet can be controlled by controlling characteristics of the laser pulse such as beam shape, beam intensity, pulse width, repetition rate, and wavelength to produce a graphene material having desired electrical, optical, thermal, and/or mechanical properties.