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David Yeung
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Stamford, CT, US
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last 30 patents
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Patent Grant
Pantethine component for hair permanent waving
Patent number
4,851,215
Issue date
Jul 25, 1989
Richardson-Vicks Inc.
Walter P. Smith
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Topical treatment of skin inflammatory disorders
Patent number
4,758,432
Issue date
Jul 19, 1988
Richardson-Vicks Inc.
David Yeung
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Topical treatment of skin inflammatory disorders
Patent number
4,623,667
Issue date
Nov 18, 1986
Richardson-Vicks Inc.
Eugene Gans
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Monohydroxy-benzoyl peroxide and compositions for treating acne
Patent number
4,520,133
Issue date
May 28, 1985
Richardson-Vicks Inc.
Allen I. Dines
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE