prior art

noun

Definition of prior art

patent law
: knowledge that is publicly available (as from the description in an already existing patent, from publications, or from public use or sale) before the date of filing a claim for a patent for an invention a finding by the judge that there was no advancement of design in the new invention over the prior art

First Known Use of prior art

1883, in the meaning defined above

Keep scrolling for more

Learn More about prior art

Dictionary Entries near prior art

Prior

priorable

prioral

prior art

prioress

priorite

prioritied

Statistics for prior art

Look-up Popularity

Time Traveler for prior art

The first known use of prior art was in 1883

See more words from the same year

Keep scrolling for more

More Definitions for prior art

prior art

noun

Legal Definition of prior art

: the processes, devices, and modes of achieving the end of an alleged invention that were known or knowable by due diligence before and at the date of the invention also : the knowledge or description of such processes, devices, or modes used chiefly in patent law

Comments on prior art

What made you want to look up prior art? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a haphazard or makeshift solution

Get Word of the Day daily email!

Test Your Vocabulary

Summer 2019 Words of the Day Quiz

  • a-bowl-of-peach-sorbet-with-cut-peaches-next-to-it
  • Which is a synonym of desideratum?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!