Loading patent…
AssigneeEntegris, Inc.
InventorsKwok-Shun CHENG, Rajni PATEL, Maybelle WOO, Puth PROEUNG
Estimating the term…
Described are liquid-flowable, porous polyethylene filter membranes that include two opposing sides and that have an asymmetric pore structure; filter components and filters that include this type of porous polyethylene filter membrane; methods of making the porous polyethylene filter membranes, filter components, and filters; and methods of using a porous polyethylene filter membrane, filter component, or filter, to filter a fluid such as a liquid chemical to remove unwanted material from the fluid.
A method of using a filter membrane, the method comprising passing solvent-containing liquid through the filter membrane,
A method of preparing a porous polyethylene film having two opposed sides and a thickness between the two opposed sides, with pores throughout the thickness, and with the pores having an asymmetric pore structure, the method comprising:
Dependencies are inferred from the claim text.