What Are Some of a Trademark or Service Mark Owner’s Other Responsibilities to Preserve its Rights in its Mark?

The owner must take action against third party infringers of the mark. In short the owner must “police” his mark. Failure to prosecute infringers can substantially weaken the strength of the mark and thus the owner’s ability to stop future unauthorized use. Once infringement is discovered the owner should take prompt action against it. Many infringements can be addressed by sending cease and desist letters.