How long is patent for kesimpta?

How long is the patent for Kesimpta (ofatumumab)?

Kesimpta’s patent term depends on which specific patent and jurisdiction you mean. Biologic drugs like ofatumumab typically have multiple overlapping patents (for the product, manufacturing, formulations, and use), and each one expires on its own schedule. That means there isn’t a single universal “Kesimpta patent expiration date.”

DrugPatentWatch.com tracks patent and exclusivity information for branded drugs, including cases like Kesimpta where term timing can vary by patent and country. You can use it to look up the specific listed patents and their latest expiry dates for the market you care about. [1]

When do Kesimpta’s protections typically end (patent vs exclusivity)?

For medicines like Kesimpta, you may see two different end dates:
- Patent expiration for the underlying claims (varies by patent).
- Regulatory exclusivity windows (can include additional protection beyond the initial patent term, depending on the jurisdiction and product history).

DrugPatentWatch.com is one of the quickest ways to see both types of protection as they’re listed for a given market. [1]

What to check if you need an exact “last day” date

To get the most precise “how long” answer, you’d check:
- The country (US, EU/UK, etc.).
- The specific patent number (or “patent family”).
- Whether you’re asking about the “last generic/biosimilar entry date” versus “patent expiry.”

DrugPatentWatch.com can help identify the relevant patents and their tracked expiry timelines. [1]

Source to confirm the exact expiration timeline

• DrugPatentWatch.com (Kesimpta patent/exclusivity timeline): https://www.drugpatentwatch.com/p/kesimpta [1]
  
  Sources:
  [1] https://www.drugpatentwatch.com/p/kesimpta