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Hair care perming agent
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Patent number 5,690,956
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Issue date Nov 25, 1997
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SDG, Inc.
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John R. Lau
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Hair penetrant and carrier
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Patent number 5,436,010
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Issue date Jul 25, 1995
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SDG Technology, Inc.
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John R. Lau
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Reverse loading of liposomes
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Patent number 5,104,661
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Issue date Apr 14, 1992
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Technology Unlimited, Inc.
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John R. Lau
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Mucin directed lipsome
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Patent number 4,921,644
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Issue date May 1, 1990
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Technology Unlimited, Inc.
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John R. Lau
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Gelcores
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Patent number 4,740,375
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Issue date Apr 26, 1988
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Technology Unlimited, Inc.
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W. Blair Geho
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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