# Axel Ullrich — Patents explained on PatentBrief

Axel Ullrich has 1 landmark patent explained in plain English on PatentBrief.

- [Using Antibodies to Block HER3 Proteins in Cancer Cells](https://patentbrief.org/patent/us/9011851/perjeta-pertuzumab) — granted 2015
  A patent describing specific antibodies that bind to and block the HER3 protein, which is often used by cancer cells to grow and survive.

**Full profile:** https://patentbrief.org/inventor/axel-ullrich

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_Source: PatentBrief — https://patentbrief.org. Plain-English explanations of US patents._