Recently, the paper “Patent families as macro level patent value indicators: applying weights to account for market differences“ by Peter Neuhäusler and Rainer Frietsch was published online in Scientometrics. It introduces a methodology for the construction of a country level patent quality indicator based on the family size of a country’s patent profile at the technology field level. The family size indicator has been shown to have a restricted power to assess the quality of patent profiles of countries especially becaucse individual family members target different markets and technologies have a different propensity to internationalization. The authors address this gap by weighting the members of patent families filed at different patent offices to account for the market potential in which the patents of these families were filed. Different weighting schemes (e.g. a country’s GDP or population) are applied, which are then tested to find out which one is best able to explain the export performance of countries. The results show that statistics based on absolute (weighted or unweighted) family counts are barely affected by the chosen weighting factor. Yet, the average family size with the family members weighted by imports, as well as GDP, can be shown to have a robust positive effect to explaining export performance. The imports and the GDP weighted average family size are thus able to act as a consistent indicator of patent value at the country and technology field level.