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Vaseline, Velcro, Mace and Styrofoam aren't generic? The fuck? I didn't even know those were trademarked names. Vaseline maybe, but the other three are common enough that I was sure they were generic.
Petroleum jelly, hook and loop, pepper spray, and polystyrene.
polystyrene-foam
The one that got me was zipper. What else do you call one?
It was previously commercialized as Lightning Fastener in NA, or hookless fastener in contrast with previous "technology".
Non-english languages sometimes have other words for it, if they encountered it before the Zipper was widespread. In Spanish we have cremallera and cierre. Old timers say fecho-de-correr or "fecho eclair" in Portuguese, referring to another patent holder Éclair Prestil.
Mmmm...eclairs.
Velcro brand doesn't want anyone to call the invention Velcro to protect the trademark: https://youtu.be/rRi8LptvFZY