# Yvonne Man-yee Chen — Patents explained on PatentBrief

Yvonne Man-yee Chen has 2 landmark patents explained in plain English on PatentBrief.

- [How Genentech's Antibodies Stop Tumor Blood Vessel Growth](https://patentbrief.org/patent/us/7297334/anti-cd20-antibody-therapy) — granted 2007
  A Genentech patent for specific lab-made antibodies that block a protein called VEGF, effectively starving tumors of the blood supply they need to grow.
- [How Genentech Engineered Antibodies to Starve Tumors of Blood](https://patentbrief.org/patent/us/7169901/avastin-bevacizumab) — granted 2007
  A 2007 Genentech patent describing specific lab-made antibodies that block a protein called VEGF, which tumors use to grow new blood vessels.

**Full profile:** https://patentbrief.org/inventor/yvonne-man-yee-chen

---

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