# Seoul National University R&DB Foundation — Patents explained on PatentBrief

Seoul National University R&DB Foundation has 2 landmark patents explained in plain English on PatentBrief.

- [How to Make Lithium-Sulfur Batteries Last Longer Using Polymer Coatings](https://patentbrief.org/patent/us/12266789/merlin-engine) — granted 2025
  A new way to coat sulfur battery cores with a special polymer to prevent them from degrading, helping them hold a charge for more cycles.
- [How to Prepare 3D Flash Memory for Use](https://patentbrief.org/patent/us/9685235/method-of-initializing-3d-non-volatile-memory-device) — granted 2017
  This patent describes a method for setting up a 3D non-volatile memory chip, like those in SSDs, by precisely programming control transistors, including a special "dummy" one, to make sure the memory works correctly.

**Full profile:** https://patentbrief.org/company/seoul-national-university-rdb-foundation

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