Patent cliff is a sudden drop in profits to company from a product when the lifetime of its patent expires, which is typically 20 years. This term is often applied to patented medication.

“  |  Once the patent expires, a low-cost generic drug can wipe out billions of dollars in sales for the original maker, virtually overnight. They call this a “patent cliff.” Pfizer’s cholesterol drug Lipitor lost $5 billion in sales in the first year after generics came on the market.[1] |  ”

|
|

## Referencexs[edit]

1. ↑ https://hbr.org/2022/09/moderna-v-pfizer-what-the-patent-infringement-suit-means-for-biotech#:~:text=Once the patent expires, a,generics came on the market.