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The characteristics of patents impacting availability of biosimilars

The large number of biologic drug patents in the United States has contributed to delays in biosimilar availability.

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Fig. 1: Claim types among litigated biologic patents.
Fig. 2: Priority, application and grant timing of litigated biologic patents.


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This work was supported by Arnold Ventures.

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Correspondence to Ameet Sarpatwari.

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Van de Wiele, V.L., Beall, R.F., Kesselheim, A.S. et al. The characteristics of patents impacting availability of biosimilars. Nat Biotechnol 40, 22–25 (2022).

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