A "Sole Proprietorship" or "General Partnership" seeking to operate in the County of Middlesex must file a Certificate of Trade Name with the County Clerk. An overview of a trademark application and maintenance process.Step 1: Is a trademark application right for you? Registration of a business name does not establish trademark rights. Enter as much of the name as you are sure of. A wild card is automatically inserted at the end of each search. Search trademarks, apply to register your trademark, protect against scams, maintain your registration, laws and rules. Business Registration Form. In short, as soon as you use your business name for the sale of goods or services, that name is protected under common law trademark rights. If you need help figuring out the business licenses and permits you need, give us a call at (800) 6033900.