# Sjoerd Bastiaan Zwartkruis — Patents explained on PatentBrief

Sjoerd Bastiaan Zwartkruis has 1 landmark patent explained in plain English on PatentBrief.

- [How a Refillable Capsule Plug Seals Cleaning Concentrates](https://patentbrief.org/patent/us/11958662/starlink-gen-3) — granted 2024
  A specialized plug design for refillable cleaning product capsules that ensures a secure, leak-proof seal when the capsule is attached to a bottle.

**Full profile:** https://patentbrief.org/inventor/sjoerd-bastiaan-zwartkruis

---

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