Patent ID: 11957746
Assignee: nan
Field: Pharmaceuticals (Chemistry)
Classification: CPC A  C  Y | IPC A  C

Claim 3:
4. The method of claim 1,
wherein the at least one filter comprises 2-8 filters or 5-7 filters,
or wherein each of the at least one filter has a total filter area of about 16-26 m2 or of about 20-22 m2,
or wherein the filter membrane has an average pore size that is smaller than the recombinant PCV2 ORF2 protein and/or said virus-like particles, or wherein the filter membrane has a molecular weight cut off of between about 200 kDa and about 500 kDa,
or wherein the filter membrane comprises a material selected from the group consisting of polyethersulfone, cellulose hydrate, regenerated cellulose, stabilized cellulose, cross-linked cellulose, cross-linked cellulose hydrate, cellulose acetate, polyamide, polyurethane, polypropylene, polysulfone, polycarbonate, nylon, polyimide, and combinations thereof,
or wherein the filter membrane comprises polyethersulfone, or wherein the filter membrane is a stabilized cellulose based membrane.