# American Express Travel Related Services Co Inc — Patents explained on PatentBrief

American Express Travel Related Services Co Inc has 2 landmark patents explained in plain English on PatentBrief.

- [How a Single Card Can Pay for Transit Using Loyalty Points](https://patentbrief.org/patent/us/10176475/square-point-of-sale) — granted 2019
  A system that lets one payment card handle both retail shopping and transit fares, automatically converting loyalty points between different geographic regions to cover travel costs.
- [How American Express Tracks Your Spending Habits Across Different Stores](https://patentbrief.org/patent/us/7672870/amazon-prime) — granted 2010
  A system that links store-specific product codes to universal manufacturer codes to help consumers track their spending and stay within personal budgets.

**Full profile:** https://patentbrief.org/company/american-express-travel-related-services-co-inc

---

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