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Definition of patent:

  1. A document making a grant and conveyance of public lands.
  2. A letter patent, or letters patent; an official document, issued by a sovereign power, conferring a right or privilege on some person or party.
  3. A writing securing to an invention.
  4. 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.
  5. Open to public perusal; - said of a document conferring some right or privilege; as, letters patent. See Letters patent, under 3d Letter.
  6. Open; expanded; evident; apparent; unconcealed; manifest; public; conspicuous.
  7. Spreading; forming a nearly right angle with the steam or branch; as, a patent leaf.
  8. The right or privilege conferred by such a document; hence, figuratively, a right, privilege, or license of the nature of a patent.
  9. 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.


unmixed, protected, monopolize, unobstructed, exclude, homely, unembellished, control, sheer, unsubtle, free, observable, perceptible, seeming, broad, trademark, manifest, spare, visible, copyright, register, crystal clear, palpable, letters patent, obvious, unornamented, patented, plain, limited, transparent, conspicuous, ostensible, controlled, secure, see, patent of invention, licensed, unvarnished, clear-cut, tangible, overt, distinct, unpatterned, limit, safeguard, evident, apparent, pronounced, glaring, unmingled, noticeable, discernible.

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