# Roland Seiffert — Patents explained on PatentBrief

Roland Seiffert has 1 landmark patent explained in plain English on PatentBrief.

- [Smart Ranking of Emails and Files Based on How You Click](https://patentbrief.org/patent/us/6370526/google-adwords-pay-per-click) — granted 2002
  IBM's 1999 patent on automatically sorting lists of items, like emails, by watching which ones you click first and updating a mathematical model of your preferences in the background.

**Full profile:** https://patentbrief.org/inventor/roland-seiffert

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