4. Drug, bio-affecting and body treating compositions
  5. Designated organic active ingredient containing
  6. Heterocyclic carbon compounds containing a hetero ring...

Jian Jeffrey Chen

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6-substituted pyrido-pyrimidines

Organic compounds -- part of the class 532-570 series – Organic compounds – Pteroyl per se or having -c- – wherein x is chalcogen – bonded...
Reexamination Certificate

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6-Substituted pyrido-pyrimidines

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate

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6-substituted pyrido-pyrimidines

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

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7-oxo-pyridopyrimidines (I)

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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7-oxo-pyridopyrimidines (II)

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

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