Adding a distinctive visual element can improve the chances of registration where the name alone lacks sufficient distinctiveness. A figurative or combined mark incorporating a distinctive logo carries a higher overall distinctiveness than a purely descriptive wordmark, which can make the difference between a refusal and an approval.
The visual element must be genuinely distinctive to have this effect. A generic shape, a simple geometric form, or a standard decorative element will not add meaningful distinctiveness. The logo needs to be sufficiently original that it contributes to the mark's capacity to identify a single commercial source.