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patent cliff

American  

noun

  1. a potential sharp drop in sales and revenue for a company when one of its patents expires.

    the looming patent cliffs faced by pharmaceutical firms.


Etymology

Origin of patent cliff

First recorded in 2005–10

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“The good news is that we knew the patent cliff was coming,” Chief Financial Officer David Denton told Barron’s.

From Barron's • May 5, 2026

Merck announced earlier this week that it would reorganize its human health business to create a separate division for its oncology medicines ahead of Keytruda’s patent cliff.

From Barron's • Feb. 25, 2026

A patent cliff is what happens when one or a few blockbuster drugs lose protection and cheaper copies flood in, knocking a hole in revenue.

From The Wall Street Journal • Jan. 6, 2026

It also has promising drugs like newly launched flu-drug Xofluza but the patent cliff for its HIV treatments will create an earnings gap that will be hard to completely offset.

From Reuters • Jul. 16, 2019

It was originally thought that the biosimilars would exact a lot of pain like the patent cliff with other drugs.

From Forbes • Sep. 4, 2014

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