patent

American  

[pat-nt, peyt-, peyt-nt] / ˈpæt nt, ˈpeɪt-, ˈpeɪt nt /

noun

1. the exclusive right granted by a government to an inventor to manufacture, use, or sell an invention for a certain number of years.

2. an invention or process protected by an exclusive right to manufacture, use, or sell it.

3. an official document conferring on the inventor the exclusive right to manufacture, use, or sell an invention; letters patent.

4. Law. the instrument by which the government of the United States conveys the legal fee-simple title to public land.

5. patent leather.

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adjective

1. protected by an exclusive right given to an inventor to manufacture, use, or sell an invention; patented.

   a patent cooling device.

2. relating to, concerned with, or dealing with the granting of exclusive rights to sell or manufacture something, especially inventions.

   a patent attorney;

   patent law.

3. (of a right, privilege, etc.) conferred by a patent.

4. holding an exclusive right to manufacture, use, or sell an invention.

5. readily open to notice or observation; evident; obvious.

   She turned her nose up at me in a patent breach of good manners.

   Synonyms:

   unconcealed, conspicuous, palpable, clear

   Antonyms:

   hidden, obscure, dim

6. made of patent leather.

   patent shoes.

7. (of a medication) sold without a prescription and usually protected by an exclusive legal right to manufacture.

   patent remedies;

   patent drugs.

8. lying open; not enclosed or shut in.

   a patent field.

9. (of a doorway, passage, or the like) open.

10. Chiefly Botany. expanded or spreading.

11. Medicine/Medical. (of a duct or passage in the body) open or unobstructed.

12. Phonetics. open, in various degrees, to the passage of the breath stream.

verb (used with object)

1. to take out a patent on; obtain the exclusive rights to (an invention, process, etc.) by a patent.

2. to originate and establish as one's own.

3. Metallurgy. to heat and quench (wire) so as to prepare for cold-drawing.

4. Law. to grant (public land) by a patent.

patent British  

/ ˈpeɪtənt, ˈpætənt /

noun

1. 1. a government grant to an inventor assuring him the sole right to make, use, and sell his invention for a limited period

   2. a document conveying such a grant

2. an invention, privilege, etc, protected by a patent

3. 1. an official document granting a right

   2. any right granted by such a document

4. 1. a grant by the government of title to public lands

   2. the instrument by which such title is granted

   3. the land so granted

5. a sign that one possesses a certain quality

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adjective

1. open or available for inspection (esp in the phrases letters patent, patent writ )

2. obvious

   their scorn was patent to everyone

3. concerning protection, appointment, etc, of or by a patent or patents

4. proprietary

5. (esp of a bodily passage or duct) being open or unobstructed

6. biology spreading out widely

   patent branches

7. (of plate glass) ground and polished on both sides

verb

1. to obtain a patent for

2. (in the US) to grant (public land or mineral rights) by a patent

3. metallurgy to heat (a metal) above a transformation temperature and cool it at a rate that allows cold working

Usage

The pronunciation ˈpætənt is heard in letters patent and Patent Office and is the usual US pronunciation for all senses. In Britain ˈpætənt is sometimes heard for senses 1, 2 and 3, but ˈpeɪtənt is commoner and is regularly used in collocations like patent leather

Related Words

See apparent.

Other Word Forms

• nonpatentability
  noun
• nonpatentable
  adjective
• nonpatented
  adjective
• nonpatently
  adverb
• patentability
  noun
• patentable
  adjective
• patentably
  adverb
• patently
  adverb
• prepatent
  noun
• unpatent
  adjective
• unpatentability
  noun
• unpatentable
  adjective
• unpatented
  adjective

Etymology

Origin of patent

First recorded in 1250–1300; (adjective) Middle English, from Latin patent-, stem of patēns “open, standing open,” present participle of patēre “to stand open, lie open”; (noun) Middle English, short for letters patent, translation of Medieval Latin litterae patentēs “open letters”

Explanation

A patent is a government document that proves that an invention is yours and yours alone. In the U.S., as of 2009, over 7,000,000 patents were issued by the Patent and Trademark Office. Patent also refers to leather that has a very shiny finish. The process for making leather look like this was once patented, but since patents do not last forever, the process is now available for anyone to use. As with patent leather, the word is often used as part of a sales pitch, explaining why something is special: "We use patented technology..." or "Our patented method..."

Example Sentences

This is similar to how the patent system encourages the development of new drugs—companies invest knowing they will earn returns only if their drug works and is adopted.

From The Wall Street Journal • May 13, 2026

In early March Novo Nordisk agreed to drop a patent infringement lawsuit against Hims in exchange for the telehealth provider’s commitment to sell branded Ozempic and Wegovy through its online pharmacy.

From Barron's • May 11, 2026

Its patent expired in 2000 and the chemical is now sold by various manufacturers.

From BBC • May 6, 2026

The patent expiration of eye drug Eylea has weighed on the results of Bayer’s pharma business in recent quarters.

From The Wall Street Journal • May 6, 2026

Just so you know, patent leather shoes should only be for men who are getting married.

From "All American Boys" by Jason Reynolds

Related Words

• charter
• concession
• license
• privilege
• protection