Sriracha isn't trademarked in any way. Anyone can make it and sell it in a similar bottle. Unless some restaurant specifically mentions Huy Fong or shows the ro

Sriracha isn't trademarked in any way. Anyone can make it and sell it in a similar bottle. Unless some restaurant specifically mentions Huy Fong or shows the rooster logo, the sriracha they are using is probably a generic version made from garlic and chilis.