Trademark Overview
On Friday, February 20, 2026, a trademark application was filed for DUOFLUX with the United States Patent and Trademark Office. The USPTO has given the DUOFLUX trademark a serial number of 79450299. The federal status of this trademark filing is NON-FINAL ACTION COUNTED - NOT MAILED as of Tuesday, June 9, 2026. This trademark is owned by Daicel Corporation. The DUOFLUX trademark is filed in the Chemical Products, Computer & Software Products & Electrical & Scientific Products, Medical Instrument Products, Environmental Control Instrument Products, and Rubber Products categories with the following description:
Membrane filtration apparatus and parts thereof for medical purposes; filters for medical apparatus and instruments; filtration membranes for medical apparatus and instruments; apparatus and parts thereof for use in filtration and purification of exosomes for medical diagnostic purposes; medical apparatus, instruments, and parts thereof for use in filtration and purification of exosomes from cell culture media; medical apparatus, instruments, and parts thereof for cell culture; medical diagnostic apparatus and parts thereof; medical apparatus and instruments, and parts thereof.
Semi-processed plastics; semi-processed cellulose acetate; semi-processed plastics for use in the manufacture of filtration membranes; semi-processed cellulose acetate for use in the manufacture of filtration membranes; semi-processed plastics in the form of hollow fibers for use in the manufacture of filtration membranes; semi-processed cellulose acetate in the form of hollow fibers for use in the manufacture of filtration membranes; semi-finished plastic products.
Chromatography apparatus and parts thereof for industrial purposes; chromatography columns and parts thereof for industrial purposes; liquid chromatography apparatus and parts thereof for industrial purposes; liquid chromatography columns and parts thereof for industrial purposes; chromatography apparatus and parts thereof for use in filtration and purification of exosomes for industrial purposes; chromatography columns and parts thereof for use in filtration and purification of exosomes for industrial purposes; filters for liquid chromatography apparatus for industrial purposes; filtration membranes for liquid chromatography apparatus for industrial purposes.
Chemicals for use in chromatography; chemical materials for separation, for use in liquid chromatography columns; chemical materials for packing, for use in liquid chromatography columns; carrier materials for liquid chromatography; chemicals for use in filtration and purification of exosomes from cell culture liquid; cellulose for use in industry; industrial chemicals; reagents for scientific use.
Chromatography apparatus and parts thereof; chromatography columns and parts thereof; liquid chromatography apparatus and parts thereof; liquid chromatography columns and parts thereof; chromatography apparatus and parts thereof for use in filtration and purification of exosomes from cell culture media; chromatography columns and parts thereof for use in filtration and purification of exosomes from cell culture media; filters for liquid chromatography apparatus; filtration membranes for liquid chromatography apparatus; laboratory apparatus and instruments for use in filtration and purification of exosomes from cell culture media; laboratory apparatus and instruments, and parts and accessories thereof; measuring and testing machines, instruments, and parts and accessories thereof.
