# William A. Baker — Patents explained on PatentBrief

William A. Baker has 1 landmark patent explained in plain English on PatentBrief.

- [The Sticky Microscopic Beads Behind Post-it Notes](https://patentbrief.org/patent/us/4166152/post-it-note-adhesive) — granted 1979
  3M's 1977 patent on tiny, naturally sticky plastic beads that can stick to a surface, peel off easily without leaving residue, and be reused over and over again.

**Full profile:** https://patentbrief.org/inventor/william-a-baker

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