Pall Corporation

Geoffrey Patrick Larue

Xiaosong Wu

Yolando David

Shane Edward Harton

Martin Smith

Membranes comprising first and second surfaces, the first surface comprising a patterned surface comprising peaks and valleys, first region surfaces comprising peaks, and second region surfaces comprising valleys; a porous bulk between the surfaces, the bulk comprising first region bulks and second region bulks; the region bulks extending from their respective region surfaces, the first region bulks comprising a first set of pores having outer rims, and a second set of pores connecting the outer rims of the first set of pores, and a first polymer matrix supporting the first set of pores; the second region bulks comprising a third set of pores having outer rims, and a fourth set of pores connecting the outer rims of the third set of pores, and a second polymer matrix supporting the third set of pores; filters including the membranes, and methods of making and using the membranes, are disclosed.

Porous polymeric membrane with high void volume

Asymmetric microporous membranes with localized asymmetries, devices including the membranes, and methods of making and using the membranes, are disclosed. The asymmetric microporous membranes have a first surface and a second surface and an interior bulk defined by the first and second surfaces, wherein the first surface has at least a first region and a second region, the first region having a first porosity comprising a first mean pore size, and the second region having a second porosity comprising a second mean pore size, wherein the ratio of first mean pore size to the second mean pore size is at least about 5:1.

Growing community of inventors

Gulf Breeze, FL, United States of America

Geoffrey Patrick Larue