You might be surprised just how much it happens here.
Some examples of brands or former brands we use in the UK as generic names include: Petrol, Biro, Frisbee, Google, Jacuzzi, Taser, Velcro, Fibreglass, Bubble Wrap, Lino/Linoleum, Trampoline, Super Glue, App, EpiPen, AdBlue, Memory Stick...