Trademarks are scoped by product/service category and geographical region.
> An example of the first type is that although Maytag owns the trademark "Whisper Quiet" for its dishwashers, makers of other products may describe their goods as being "whisper quiet" so long as these products do not fall under the same category of goods the trademark is protected under.
> An example of the first type is that although Maytag owns the trademark "Whisper Quiet" for its dishwashers, makers of other products may describe their goods as being "whisper quiet" so long as these products do not fall under the same category of goods the trademark is protected under.
https://en.wikipedia.org/wiki/Trademark#Limits_and_defenses_...