Someone's using a name similar to yours. Can you sue? UK courts use a 3-part test to determine infringement, and 60% of cases fail on part 2. Here's what you need before sending legal threats.
Part 1: Valid Trademark
Your mark must be registered or have common law rights. No protection = no case.
Part 2: Likelihood of Confusion
Would average consumer confuse the two? Same industry, similar appearance, phonetic similarity all factor in.
Courts reject 61% of infringement claims at "likelihood of confusion" stage. Similarity alone isn't enough - must prove actual customer confusion risk.
Confusion Evidence
Misdirected calls, customer testimonials, survey data. Document everything before filing.
Part 3: Use in Commerce
They must be actually trading under the name. Registered but unused = no infringement.
Defenses They Can Raise
Prior use, different industry, geographic separation, purely descriptive use.
Before You Sue
Cease and desist letter (£500-1,500). Most cases settle here. Litigation costs £30,000-100,000.
Warning: Groundless threats of infringement are illegal in UK. Sue without valid case and you face counter-claims for business damage.
Generic Names Can't Be Trademarked
If you want legal protection and a name competitors can't copy, make it distinctive from day one. Generic names have zero infringement protection.