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Warwick, NY, United States of America

Richard D Katstra

Average Co-Inventor Count = 2.86

ph-index = 4

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 = 36

Richard D KatstraJoseph A Komor (4 patents)Richard D KatstraJames E Perella (4 patents)Richard D KatstraDennis L Fost (1 patent)Richard D KatstraJohn A Duffy (1 patent)Richard D KatstraRichard D Katstra (5 patents)Joseph A KomorJoseph A Komor (8 patents)James E PerellaJames E Perella (6 patents)Dennis L FostDennis L Fost (37 patents)John A DuffyJohn A Duffy (17 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Mona Industries, Inc. (4 from 40 patents)

2. Avon Products, Inc. (1 from 364 patents)


5 patents:

1. 6531443 - Alkanolamides

2. 6369007 - Amphoteric derivatives of aliphatic polyamines with fatty acids, esters or triglycerides, which are useful for various consumer products and industrial applications

3. 6200938 - Amphoteric derivatives of aliphatic polyamines with fatty acids, esters or triglycerides for consumer products and industrial applications

4. 6004914 - Amphoteric derivatives of aliphatic polyamines with fatty acids, esters

5. 4724138 - Preparation of a self supporting cosmetic from a pigmented powder

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as of
12/11/2025
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