Trademark Overview
On Monday, August 11, 2025, a trademark application was filed for LONGFIAN with the United States Patent and Trademark Office. The USPTO has given the LONGFIAN trademark a serial number of 99330783. The federal status of this trademark filing is PUBLICATION/ISSUE REVIEW COMPLETE as of Monday, January 5, 2026. This trademark is owned by Longfian Scitech Co., Ltd. The LONGFIAN trademark is filed in the Medical Instrument Products category with the following description:
Medical ventilators; Medical apparatus, namely, lung ventilators with monitoring capability; Medical apparatus and instruments for monitoring vital signs, blood properties and respiratory events; Medical apparatus, namely, respiratory equipment and monitors therefor; Ventilators and anesthesia machines for use in patient care; Hyperbaric oxygen chambers for medical purposes; Oxygen concentrators for medical purposes; Medical apparatus and instruments for monitoring blood oxygen saturation, blood gas concentrations, vital signs and respiratory events; Medical apparatus for the treatment of respiratory conditions; Oxygen inhalers for medical use, sold empty
