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New York, NY, United States of America

John Stewart Drysdale

Average Co-Inventor Count = 1.00

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 = 82

John Stewart DrysdaleJohn Stewart Drysdale (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Helena Rubinstein, Inc. (2 from 18 patents)


2 patents:

1. D244993 - Carton

2. D244318 - Lipstick case

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as of
12/11/2025
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