MINNEAPOLIS--(BUSINESS WIRE)--Entellus Medical, a Minnesota-based medical technology company, today announced that the U.S. Patent and Trademark Office awarded U.S. patent number 7,520,876 titled “Device and Method for Treatment of Sinusitis” related to its FinESS™ Sinus Treatment. The issuance of this patent reinforces the significance of this innovative treatment option for ENTs and their patients.