# Elwood Haynes — Patents explained on PatentBrief

Elwood Haynes has 1 landmark patent explained in plain English on PatentBrief.

- [Elwood Haynes' Early Stellite Cobalt-Chromium Alloy](https://patentbrief.org/patent/us/1057423/stellite-cobalt-alloy-haynes) — granted 1913
  A 1913 patent for a durable, corrosion-resistant metal alloy made primarily of cobalt and chromium, which laid the foundation for modern high-performance tools and medical implants.

**Full profile:** https://patentbrief.org/inventor/elwood-haynes

---

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