Which of these product brand names has NOT entered common language as a generic term (avoiding 'genericide' where a trademark becomes a common noun)?

Brands play a fascinating role in shaping language. Some product names become so iconic they transform into generic terms for entire categories, influencing our everyday vocabulary in ways we often don't realize. This linguistic phenomenon, called 'genericization' or 'proprietary eponymy,' represents both a marketing triumph and trademark challenge. Test your knowledge about famous products that have shaped the language landscape!

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Chapstick (lip balm)
Google (to search online)
Kleenex (facial tissue)
Pepsi (cola beverage)