open; expanded; evident; apparent; unconcealed; manifest; public; conspicuous.-open to public perusal; -- said of a document conferring some right or privilege; as, letters patent. see letters patent, under 3d letter.-appropriated or protected by letters patent; secured by official authority to the exclusive possession, control, and disposal of some person or party; patented; as, a patent right; patent medicines.-spreading; forming a nearly right angle with the steam or branch; as, a patent leaf.-a letter patent, or letters patent; an official document, issued by a sovereign power, conferring a right or privilege on some person or party.-a writing securing to an invention.-a document making a grant and conveyance of public lands.-the right or privilege conferred by such a document; hence, figuratively, a right, privilege, or license of the nature of a patent.-to grant by patent; to make the subject of a patent; to secure or protect by patent; as, to patent an invention; to patent public lands.