DONALDSON

[Class - 9]

Protective vent assemblies for protection from particles, water, oils, and liquids while allowing pressure equalization in enclosures; Non-adhesive protective vents to protect devices from particles, water, oils, and other liquids; vents for portable electronics; Hearing device filters; Screw vents; Snap-fit vents; Software for controlling airflow; Software for Hydraulic Oil Analysis; Software to monitor fuel filtration systems; Controls to provide pressure drop measurement, digital display, and pressure drop control with an alarm function; Sensor for diesel emission control systems; Filter service indicators; Patch test kits for use in bulk fluid storage applications; Remote filter monitoring system; Disk drive seals and filters; Adsorbent breather filters; Pressure gauges & switches for use with gas turbines; Pulse cleaning air filter systems for use with gas turbines; Self-cleaning filter for turbines; Static air filtration systems for use with gas turbines; Turbine filters for oil production and gas pipelines; Valves & Solenoids for air compression for use with gas turbines

[Class - 11]

Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes; Air filtration for environmental applications; HEPA filters; Filtration media in the form of a membrane or multi-layer fabric for use in filtering gases and/or liquids; Microporous membranes for the venting, filtration, sterile filtration and purification of liquids and gases in breather vent, gas sensor, chemical venting, process chemical purification, sterile hydrophobic venting, and electronic and computer air filter applications