# Hyun Yoo Kim — Patents explained on PatentBrief

Hyun Yoo Kim has 2 landmark patents explained in plain English on PatentBrief.

- [How a Fuel Cell Humidifier Adjusts Air Moisture with a Bypass](https://patentbrief.org/patent/us/11646431/humidifier-for-fuel-cell) — granted 2023
  This patent describes a fuel cell humidifier that uses a special bypass path to precisely control how much moisture is added to dry air, improving fuel cell performance.
- [How a Fuel Cell Humidifier Controls Air Moisture with a Smart Valve](https://patentbrief.org/patent/us/10950878/humidifier-for-a-fuel-cell) — granted 2021
  This patent describes a fuel cell humidifier that uses two humidifying spaces and a controllable valve to precisely adjust the moisture content of incoming air before it reaches the fuel cell stack, improving efficiency and durability.

**Full profile:** https://patentbrief.org/inventor/hyun-yoo-kim

---

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