Simple
A very complicated logo is difficult to remember and fails to communicate what the brand truly delivers.
Adaptable
Your logo must be adaptable enough to fit on a pen as easily as it fits on a hoarding.
Appropriate
The personality of the logo should match with that of the brand so that anyone can let know your brand speacilization for example, if you are specilist in implant logo must can implant icon.

Relevant
Your values, beliefs, core product or service as well as the industry you belong to must be reflected in your logo.
Timeless
Trends change as often as day. A timeless logo for your brand will eliminate the need for you to change the logo frequently and create a lasting impact for your brand.
Distinctive
A logo must be different and creative enough that people can remember it, scribble it on a piece of paper and think of your brand as soon as they see it.