4. Chemistry: molecular biology and microbiology
  5. Micro-organism, tissue cell culture or enzyme using process...
  6. Preparing heterocyclic carbon compound having only o, n, s,...

Li-Ping Chang

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Antitumor antibiotic BMS-199687

Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing heterocyclic carbon compound having only o – n – s,...
Patent

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Antitumor antibiotic BMS-199687

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Patent

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Stephacidin antitumor antibiotics

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate

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