A slogan should be catchy, informative about the product/company and memorable. Slogan's are often fun too or use a play on words. So generally speaking a slogan wouldn't normally include brackets, but they could here's an example:
Slogan for "KT" climbing supplies: "Trust anyone with your ropes...? (KnoT!)"
A slogan user
The slogan was used by Hoover for their vacuum cleaners
British Airways
1979 was the first year the slogan was used for Ford Trucks.
United Airlines used this slogan in the past.
The type of brackets commonly used to support shelves are L-shaped brackets.
The different types of brackets used for cabinet drawer slide installation include rear mounting brackets, side mounting brackets, and undermount brackets.
Basketball brackets are used in basketball tournaments to determine the winnners and other placements of the teams. There are several different types of brackets used in basketball tournaments.
A slogan user
Usually, brackets are used to organize a league's playoff games.
Brackets are used in maths to indicate the order of calculations in the equation.
An angle bracket is either of a set of brackets, ? and ?, used to enclose text, or one of the inequality signs, < or >, when used as brackets, such as in HTML.
The slogan was used by Hoover for their vacuum cleaners
Keep on thinking is a slogan. The slogan is used by Infineon.
British Airways
Parentheses are usually placed inside brackets.
Examples of a slogan include 'The happiest place on Earth.' used by Disneyland and 'It's the real thing.' used by Coca Cola. A slogan is a memorable phrase used to express a purpose or an idea.