Business naming and named businesses

[Restitvtvs]

Google searches provide a variety of Roman trademark (and brand mark, hallmark, mason's mark, etc.) websites:
http://www.google.com/search?hl=en&q=roman+stamp+bread
http://www.google.com/search?hl=en&q=roman+stamp+brick
http://www.google.com/search?hl=en&q=ro ... mp+pottery
http://www.google.com/search?hl=en&q=ro ... %27s+marks
http://www.google.com/search?hl=en&q=ro ... talworkers
http://www.google.com/search?hl=en&q=an ... s+products

All of the marks that I have seen are basic symbols and the owner's, maker's, group's and/or location's name. E.g., "Ostia Shipping Guild". No indication of creative trademark names. However, business-related "graffiti" is another matter. It could be very creative.