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Anderson RG, et al. Purification and fractionation of enzyme mixture from aqueous solution. US Patent 3,616,232 dated Oct 26 1971

Wildi BS, Weeks LE. Preparing a reactor containing enzymes attached to dialdehyde cellulose. US Patent 4,013,514 dated Mar 22 1977

Hempenius WL, et al. Process of making a base for protein beverages. US Patent 3,846,560 dated Nov 5 1974

Keay L. Purification and recovery of neutral and alkaline protease using cationic sulfonated phenol-formaldehyde resin. US Patent 3,592,738 dated Jul 13 1971

Scharpf LG Jr.. Germination of spores. US Patent 3,672,956 dated Jun 27 1972

Scharpf LG Jr.. Germination of spores. US Patent 3,672,957 dated Jun 27 1972

Scharpf LG Jr.. Germination of spores. US Patent 3,687,815 dated Aug 29 1972

Clark SG, Feierstein HE. Enzyme products. US Patent 3,706,674 dated Dec 19 1972

Miller RE. Siliceous materials having enzyme-polymer product attached to surface thereof. US Patent 3,715,278 dated Feb 6 1973