What pharmaceutical company owns keytruda's patents?

Who holds the patents for Keytruda?

Keytruda (pembrolizumab) is owned by Merck & Co., Inc., Rahway, NJ, USA (often referred to as Merck in the US). Merck is the company associated with Keytruda’s intellectual property and patent portfolio. [1]

Which brand or corporate name should you look for in patent records?

When you search patent databases or regulatory records, you’ll typically see the rights assigned to Merck and related entities within Merck’s corporate structure rather than a separate “Keytruda company.” [1]

Does ownership differ by country or patent family?

Patent ownership can vary by specific patent family and jurisdiction (for example, where rights are assigned to specific Merck affiliates or licensing entities). But the underlying portfolio associated with Keytruda traces back to Merck & Co., Inc. [1]

Sources

1. https://www.merck.com/about/leadership/merck-company-information/