one of my favorite indian restaurants' menus had vegetarian misspelled "vagitarian" all over it. they finally got new menus without the same spelling error, but i giggled like a 12 year old boy every time i saw it. still do when i think of it, like right now.
I'm not so sure Sriracha is a registered trademark. I think it's just a descriptive word for a type of hot sauce. Besides the ubiquitous Huy Fong Foods brand, there are many others, including Vi Hao Foods, Chili Boy, Flying Goose, Phoenix and at least a few other Thai ones.