# David M. Nugent — Patents explained on PatentBrief

David M. Nugent has 1 landmark patent explained in plain English on PatentBrief.

- [How the iRobot Roomba Automatically Cleans Floors Without Falling Down Stairs](https://patentbrief.org/patent/us/6883201/roomba-autonomous-vacuum) — granted 2005
  A 2002 patent describing an autonomous floor-cleaning robot that uses sensors to navigate rooms, avoid cliffs like stairs, and sweep debris into a removable bin.

**Full profile:** https://patentbrief.org/inventor/david-m-nugent

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