TREA

Mark Allan Collins

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  • Raleigh, NC, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Opioid diarylmethylpiperazines and piperidines
    • Patent number 5,854,249
    • Issue date Dec 29, 1998
    • Delta Pharmaceuticals, Inc.
    • Kwen-Jen Chang
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Opioid compounds
    • Patent number 5,681,830
    • Issue date Oct 28, 1997
    • Delta Pharmaceuticals, Inc.
    • Kwen-Jen Chang
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Opioid diarylmethylpiperazines and piperdines
    • Patent number 5,658,908
    • Issue date Aug 19, 1997
    • Delta Pharmaceuticals, Inc.
    • Kwen-Jen Chang
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE