The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 08, 1988
Filed:
May. 16, 1984
Applicant:
Inventors:
Lajos Ferenczy, Szeged, HU;
Antal Mai, Szeged, HU;
Istvan Ott, Budapest, HU;
Gabor Ambrus, Budapest, HU;
Tibor Lang, Budapest, HU;
Assignee:
Biogal Gyogyszergyar, Debrecen, HU;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12P / ; C12N / ; C12N / ; C12R / ;
U.S. Cl.
CPC ...
435 80 ; 4351722 ; 435253 ; 435886 ; 935 90 ;
Abstract
A process for the production of aminoglycoside antibiotics using fused protoplasts derived from streptomyces. The cells are precultured in a medium containing sucrose, calcium and magnesium salts. Protoplasts are formed and then fused. The fused protoplasts are regenerate and antibiotic producing ability is screened for. The regenerate cells produced an antibiotic complex of modified composition or demonstrated increased or reduced antibiotic productivity compared to the fusion partners.