Patent ID: 9440172
Filing Date: 2016-09-13
CPC Classification: B01D

Claim Text:
1. A filter element for a filter device, comprising: a filter body including at least one filter material for filtering a fluid, the filter body having a first side and a second side facing away from the first side, the filter body including a plurality of body pores, wherein the filter body has a porosity lower on the first side than on the second side, and a nano-fiber layer disposed at least partially on the first side, wherein the first side of the filter body corresponds to a dirty side to be penetrated by a fluid flow of the fluid to be filtered, wherein the filter body includes a plurality of fibers each terminating at a free end, and wherein the free end of the plurality of fibers on the first side are at least one of softer and more rounded than the free end of the plurality of fibers on the second side.