# Minnesota Mining and Manufacturing Co — Patents explained on PatentBrief

Minnesota Mining and Manufacturing Co has 2 landmark patents 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.
- [How Richard Drew Invented Modern Transparent Adhesive Tape](https://patentbrief.org/patent/us/1760820/scotch-tape-adhesive-drew) — granted 1930
  The 1930 patent for the first pressure-sensitive adhesive tape, which replaced messy glues and paper tapes with a convenient, clear, and sticky strip.

**Full profile:** https://patentbrief.org/company/minnesota-mining-and-manufacturing-co

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