The R in a circle ® or any other indication to identify registered trademarks are not explicitly required in the Dominican Industrial Property Law, therefore no legal consequences may derive from its omission.
The process to register a trademark, involves the publication of the application by ONAPI (national authority) in their official journal, which makes the application publicly known. Afterwards third parties have a period of forty five (45) days to present oppositions. Once this period is exhausted, without oppositions, the registration is granted to the applicant.
Regarding trademark infringement lawsuits, the R in a circle ® or any other designations to identify registered trademarks are not a requirement before any judicial body; its omission may not affect the outcome of trademark infringement claim.