# Craig William Fellenstein — Patents explained on PatentBrief

Craig William Fellenstein has 1 landmark patent explained in plain English on PatentBrief.

- [How a Server Updates Smart Card Apps and Shows Ads](https://patentbrief.org/patent/us/9959544/updating-an-application-on-a-smart-card-and-displaying-an-advertisement) — granted 2018
  This patent describes a system where a central server authenticates a smart card user, identifies the specific smart card, allows the user to update applications on it, and then sends an advertisement to the user's computer.

**Full profile:** https://patentbrief.org/inventor/craig-william-fellenstein

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