# Kirin Amgen Inc — Patents explained on PatentBrief

Kirin Amgen Inc has 1 landmark patent explained in plain English on PatentBrief.

- [How to Make Human Erythropoietin (EPO) Using Engineered DNA](https://patentbrief.org/patent/us/4703008/neupogen-g-csf-filgrastim) — granted 1987
  This patent describes the specific DNA sequences and methods to engineer cells to produce erythropoietin (EPO), a protein vital for red blood cell production, outside the human body.

**Full profile:** https://patentbrief.org/company/kirin-amgen-inc

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