Amazon’s Patent Evaluation Express (APEX) has become one of the most consequential patent enforcement venues in the country. According to a recent Bloomberg Law analysis, federal lawsuits stemming from the program grew more than 200% from 2022 to 2025. For companies selling on Amazon, and for patent owners targeting them, there are three features of the APEX process they should be aware of, features that often shape the outcome long before any evaluator issues a ruling.
