4. Organic compounds -- part of the class 532-570 series
  5. Organic compounds
  6. Chalcogen in the nitrogen containing substituent

Edmund Lee Ellsworth

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3-aminoquinazolin-2,4-dione antibacterial agents

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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5,6-dihydropyrone derivatives as protease inhibitors and antivir

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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5,6-dihydropyrone derivatives as protease inhibitors and antivir

Organic compounds -- part of the class 532-570 series – Organic compounds – Sulfur containing
Patent

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5,6-dihydropyrone derivatives as protease inhibitors and antivir

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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7-substituted quinazolin-2,4-diones useful as antibacterial...

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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