Drug – bio-affecting and body treating compositions – Lymphokine
Patent
1980-08-15
1982-09-14
Hazel, Blondel
Drug, bio-affecting and body treating compositions
Lymphokine
424 86, 424 88, 260112B, A61K 3912, A61K 3929
Patent
active
043495397
ABSTRACT:
Fluid containing hepatitis B surface antigen (HBsAg) is concentrated and separated from contaminating material by ultrafiltration before undergoing further processing to isolate HBsAg.
REFERENCES:
patent: 4024243 (1977-05-01), McAleer et al.
patent: 4088748 (1978-05-01), McAleer et al.
patent: 4181713 (1980-01-01), McAleer et al.
patent: 4204989 (1980-05-01), McAleer et al.
Schmitthauesier, R., Process Biochemistry, pp. 13-15, 46, 1977.
Hazel Blondel
Merck & Co. , Inc.
Perrella Donald J.
Pfeiffer Hesna J.
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