Growing community of inventors

Stamford, CT, United States of America

David Yeung

Average Co-Inventor Count = 3.00

ph-index = 2

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 11

David YeungSergio Nacht (3 patents)David YeungEugene Gans (2 patents)David YeungWalter P Smith (1 patent)David YeungGeoffrey R Hawkins (1 patent)David YeungAllen I Dines (1 patent)David YeungWalter P Smith (1 patent)David YeungSergio Nacht (1 patent)David YeungDavid Yeung (4 patents)Sergio NachtSergio Nacht (4 patents)Eugene GansEugene Gans (2 patents)Walter P SmithWalter P Smith (4 patents)Geoffrey R HawkinsGeoffrey R Hawkins (3 patents)Allen I DinesAllen I Dines (1 patent)Walter P SmithWalter P Smith (1 patent)Sergio NachtSergio Nacht (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Richardson Vicks, Inc. (4 from 114 patents)

2. Gans, Eugene (0 patent)

3. Nacht, Sergio (0 patent)

4. Yeung, David (0 patent)

5. Smith, Walter P. (0 patent)

6. Hawkins, Geoffrey R. (0 patent)


4 patents:

1. 4851215 - Pantethine component for hair permanent waving

2. 4758432 - Topical treatment of skin inflammatory disorders

3. 4623667 - Topical treatment of skin inflammatory disorders

4. 4520133 - Monohydroxy-benzoyl peroxide and compositions for treating acne

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as of
1/13/2026
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