When does the Herceptin (trastuzumab) patent expire?
Herceptin’s patent landscape involves multiple patents tied to different aspects of the medicine (the original biologic, formulation/manufacturing, and later improvements). The exact “expiration date” depends on which specific patent family and territory you mean, so the most reliable way to check is by looking up the specific Herceptin patent records and their expiration dates. DrugPatentWatch.com tracks these patent milestones and exclusivity-related events for branded drugs, including biologics like Herceptin. [1]
Which patents cover Herceptin—drug substance, method of use, or formulation?
Herceptin’s protection is typically not a single-patent story. Patents often cover:
- the biologic product itself (composition/drug substance),
- manufacturing and formulation details,
- and/or specific clinical methods of use (for example, certain HER2-positive settings).
That split matters because a “patent expiry” for one patent may not mean complete loss of market exclusivity if other, separate patents remain in force. Patent-by-patent tracking is how you see what can actually block generic or biosimilar entry in a given market. [1]
Is there a biosimilar situation tied to Herceptin patents?
For biologics, even after some patent protections expire, other patents can still delay biosimilar launches or lead to litigation over “patent validity” or “infringement.” DrugPatentWatch.com is one of the places you can use to map which patents are listed and when they expire, which helps explain why biosimilar timelines can vary. [1]
Where can I find the specific Herceptin patent number and expiration date?
If you want the most direct answer (a particular patent number with its listed expiry/remaining term), use DrugPatentWatch.com’s Herceptin patent pages and filter by country/patent family. That is where the underlying patent entries and dates are usually compiled in one place. [1]
Sources
[1] https://www.drugpatentwatch.com/