TIL that "aspirin" was actually originally a trademarked brand name owned by Bayer.
TIL that "aspirin" was actually originally a trademarked brand name owned by Bayer.
www.jonesipl.com
Genericide: The Case of Aspirin - Jones IP Law
In the trademark world, "genericide" describes how a brand name can become so common it turns into a generic term for a product or service, irrespective of its origins. This scenario signals a brand's...

This is apparently a case of a genericized trademark
I thought aspirin was the general name for the painkilling medicine, like acetaminophen of ibuprofen